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    Clock/Timing - Real Time Clocks

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    RoHS Status
    Manufacturer Part Number
    Type
    Voltage - Supply



    Image Part Number Manufacturer Description Series Operating Temperature Features Packaging Mounting Type RoHS Status Manufacturer Part Number Type Voltage - Supply
    DS1388Z-3+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.3 V
    Product Image DS14285SN+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-SOIC - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    BQ3285ESTR Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 24-SOIC - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    DS1647-120 Curtis Industries IC RAM TIMEKEEP NV 120NS 32-EDIP - 0°C ~ 70°C Leap Year, NVSRAM Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    DS1302Z+T&R/C07 Curtis Industries IC RTC CLK/CALENDAR SER 8-SOIC - 0°C ~ 70°C Leap Year, NVSRAM, Trickle-Charger Tape & Reel (TR) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    DS1501WS Curtis Industries IC RTC CLK/CALENDAR PAR 28-SOIC - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tube Surface Mount - - Clock/Calendar 3 V ~ 3.6 V
    BQ4845S-A4NTR Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 28-SOIC - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.75 V ~ 5.5 V
    Product Image M48T37V-10MH1F Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 44-SOH - 0°C ~ 70°C Alarm, Leap Year, Watchdog Timer Original-Reel® Surface Mount - - Clock/Calendar 3 V ~ 3.6 V
    Product Image DS1747W-120 Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 2.97 V ~ 3.63 V
    DS1307ZN Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    PCF8593T/1,112 C&K IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, NVSRAM Tube Surface Mount - - Clock/Calendar 2.5 V ~ 6 V
    RX8900CE:UB0 Cherry Americas IC TRC CLK/CALENDAR - - - - - RoHS Compliant - - -
    DS3234S#T&R Curtis Industries IC RTC CLK/CALENDAR SPI 20-SOIC - 0°C ~ 70°C Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal Original-Reel® Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    DS1678 Curtis Industries IC RTC EVENT REC I2C 8-DIP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Y2K Tube Through Hole - - Time Event Recorder 4.5 V ~ 5.5 V
    Product Image DS1374C-33# Curtis Industries IC RTC BINARY CNT I2C 16-SOIC - -40°C ~ 85°C Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer Tube Surface Mount - - Binary Counter 2.97 V ~ 5.5 V
    Product Image X1288V14 Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - 0°C ~ 70°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1501Y Curtis Industries IC RTC CLK/CALENDAR PAR 28-DIP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1685-5+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-DIP - 0°C ~ 70°C Alarm, NVSRAM, Square Wave Output, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1248WP-120IND Curtis Industries IC RTC PHANTOM PAR 34-PCM - -40°C ~ 85°C NVSRAM Tube Surface Mount - - Phantom Time Chip 2.97 V ~ 3.63 V
    Product Image M41T93SQA6F Conxall / Switchcraft IC RTC CLK/CALENDAR SPI 16-QFN - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 3 V ~ 5.5 V
    DS1501YSN+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-SOIC - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image M41T83ZQA6F Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 16-QFN - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer Cut Tape (CT) Surface Mount - - Clock/Calendar 2.38 V ~ 5.5 V
    DS1693+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-EDIP - 0°C ~ 70°C NVSRAM Tube Through Hole - - Clock/Calendar 2.7 V ~ 3.3 V, 4.5 V ~ 5.5 V
    RX-8803LC:UC3 PURE SN Cherry Americas IC TRC CLK/CALENDAR - - - - - - - - -
    Product Image DS1685EN-3+T&R Curtis Industries IC RTC CLK/CALENDAR PAR 24-TSSOP - -40°C ~ 85°C Alarm, NVSRAM, Square Wave Output, Y2K Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 3.7 V
    Product Image M41T56M6E Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Leap Year, NVSRAM Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image RTC-4701JE:B ROHS Cherry Americas IC TRC CLK/CALENDAR - - - - - - - - -
    Product Image AB-RTCMC-32.768KHZ-IBO5-S3-T Essentra Components IC RTC CLK/CALEND I2C 10CLCC ULP - -40°C ~ 85°C Alarm, Square Wave Output, SRAM, Trickle Charge, Watchdog Timer Original-Reel® Surface Mount - - Clock/Calendar 1.5 V ~ 3.6 V
    M41T94MQ6F Conxall / Switchcraft IC RTC CLK/CALENDAR SPI 16-SOIC - -40°C ~ 85°C Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer Cut Tape (CT) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image AB-RTCMC-32.768KHZ-AIGZ-S7-T Essentra Components IC RTC CLK/CALENDAR I2C 8-CLCC - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer Cut Tape (CT) Surface Mount - - Clock/Calendar 1 V ~ 4.4 V
    Product Image M41T81SM6F Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Watchdog Timer Cut Tape (CT) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image RX-4574LC:B3 PURE SN Cherry Americas IC RTC CLK/CALENDAR SER 12-VSOJ - -40°C ~ 85°C Alarm, Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.6 V ~ 5.5 V
    Product Image DS1339C-2# Curtis Industries IC RTC CLK/CALENDAR I2C 16-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Trickle-Charger Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image M41T81M6F Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Watchdog Timer Cut Tape (CT) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    DS1693 Curtis Industries IC RTC CLK/CALENDAR PAR 28-EDIP - 0°C ~ 70°C NVSRAM Tube Through Hole - - Clock/Calendar 2.7 V ~ 3.3 V, 4.5 V ~ 5.5 V
    Product Image X1288V14Z-4.5AT1 Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - 0°C ~ 70°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    BQ4802LYPW Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 28-TSSOP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.6 V
    1339-31DCGI8 CUI, Inc. IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Trickle-Charger Tape & Reel (TR) Surface Mount - - Clock/Calendar 3.3 V ~ 5.5 V
    ISL12059IBZ-T Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    X1228S14 Bel IC RTC CLK/CALENDAR I2C 14-SOIC - 0°C ~ 70°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1685Q-3 Curtis Industries IC RTC 3V 64-BIT Y2KC 28-PLCC - 0°C ~ 70°C Alarm, NVSRAM, Square Wave Output, Y2K Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.7 V
    Product Image DS14285SN Curtis Industries IC RTC CLK/CALENDAR PAR 24-SOIC - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1687-5+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - 0°C ~ 70°C Alarm, NVSRAM, Square Wave Output, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image RTC-4701JE:B3 ROHS Cherry Americas IC RTC CLK/CALENDAR SER 20-VSOJ - -40°C ~ 85°C Alarm, Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.6 V ~ 5.5 V
    Product Image DS1340C-33# Curtis Industries IC RTC CLK/CALENDAR I2C 16-SOIC - -40°C ~ 85°C Leap Year, Trickle-Charger Tube Surface Mount - - Clock/Calendar 2.97 V ~ 5.5 V
    DS1392U-33+ Curtis Industries IC RTC CLK/CALENDAR SER 10-USOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Trickle-Charger Tube Surface Mount - - Clock/Calendar 2.97 V ~ 5.5 V
    Product Image DS12CR887-5+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1344D-3+ Curtis Industries IC RTC CLK/CAL SPI 14TDFN - -40°C ~ 85°C Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    X1226V8I Bel IC RTC CLK/CALENDAR I2C 8-TSSOP - -40°C ~ 85°C Alarm, Leap Year Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1556W-120 Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 2.97 V ~ 3.63 V
    X1228S14IZ Bel IC RTC CLK/CALENDAR I2C 14-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1308U-3+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-UMAX - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image M48T59Y-70MH1E Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 28SOH - 0°C ~ 70°C Alarm, Leap Year, Watchdog Timer Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    PCF8563T/5,518 C&K IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer Original-Reel® Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    X1286A8IT1 Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    RX-8035LC:AC0 PURE SN Cherry Americas IC TRC CLK/CALENDAR - - - - - - - - -
    DS1307N+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-DIP - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1315S-33+T&R Curtis Industries IC RTC PHANTOM PAR 16-SOIC - 0°C ~ 70°C Leap Year Tape & Reel (TR) Surface Mount - - Phantom Time Chip 3 V ~ 3.6 V
    MAX6917EO33+T Curtis Industries IC RTC I2C COMPAT 20-QSOP - -40°C ~ 85°C - Tape & Reel (TR) Surface Mount - - Clock/Calendar/Supervisor 3 V ~ 3.6 V
    Product Image DS1742-100IND Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - -40°C ~ 85°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    PT7C433833WE Connor-Winfield I2C AND LOW POWER RTC - - - Tube Surface Mount - - - -
    Product Image DS1685S-5 Curtis Industries IC RTC CLK/CALENDAR PAR 24-SOIC - 0°C ~ 70°C Alarm, NVSRAM, Square Wave Output, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image ISL1208IU8Z-TK Bel IC RTC CLK/CALENDAR I2C 8-MSOP - -40°C ~ 85°C Alarm, Leap Year, SRAM Cut Tape (CT) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image RX-8803LC:UA3 PURE SN Cherry Americas IC RTC CLK/CALENDAR I2C 12-VSOJ - -40°C ~ 85°C Alarm Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.6 V ~ 5.5 V
    DS1394U-33+T&R Curtis Industries IC RTC CLK/CALENDAR SPI 10-MSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Trickle-Charger Original-Reel® Surface Mount - - Clock/Calendar 2.97 V ~ 5.5 V
    Product Image RX-8581NB:B3 Cherry Americas IC RTC CLK/CALENDAR I2C 22-SON - -40°C ~ 85°C Alarm, Leap Year Original-Reel® Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image MCP795W22-I/SL Cree IC RTC CLK/CALENDAR SPI 14-SOIC - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image DS1284Q/T&R Curtis Industries IC RTC CLK/CALENDAR PAR 28-PLCC - 0°C ~ 70°C Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS17885E-5+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-TSOP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tray Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1344E-3+ Curtis Industries IC RTC CLK/CALENDAR SPI 20-TSSOP - -40°C ~ 85°C Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image X1288V14IT1 Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image X1288V14I-4.5AT1 Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1687-5 Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - 0°C ~ 70°C Alarm, NVSRAM, Square Wave Output, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    BQ3287EAMT Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 24-DIP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image M41T82RM6E Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, SRAM, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1501WN+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-DIP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 3 V ~ 3.6 V
    X1227S8I-4.5A Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image MCP795W21-I/ST Cree IC RTC CLK/CALENDAR SPI 14-TSSOP - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image RX-8025SA:AA0:PURE SN Cherry Americas IC RTC CLK/CALENDAR I2C 14-SOP - -40°C ~ 85°C Alarm, Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.7 V ~ 5.5 V
    X1227V8Z Bel IC RTC CLK/CALENDAR I2C 8-TSSOP - 0°C ~ 70°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    ISL12022IBZ-T7A Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, SRAM Cut Tape (CT) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    PCF2129AT/2,518 C&K IC RTC CLK/CAL I2C/SPI 20-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 4.2 V
    Product Image DS17485-5 Curtis Industries IC RTC CLK/CALENDAR PAR 24-DIP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    PT7C433833AZEEX Connor-Winfield IC RTC MOD LOW POWER 8TDFN - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    DS3231MZ/V+T Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC Automotive, AEC-Q100 -40°C ~ 85°C Alarm, Leap Year, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.3 V ~ 5.5 V
    M41T56C64MY6E Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 18-SOIC - -40°C ~ 85°C EEPROM, Leap Year, NVSRAM Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1251Y-70 Curtis Industries IC RTC PHANTOM PAR 32-DIP - 0°C ~ 70°C Leap Year, NVSRAM Tube Through Hole - - Phantom Time Chip 4.5 V ~ 5.5 V
    1337GDCGI8 CUI, Inc. IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    DS3231MZ/V+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC Automotive, AEC-Q100 -40°C ~ 85°C Alarm, Leap Year, Square Wave Output Tube Surface Mount - - Clock/Calendar 2.3 V ~ 5.5 V
    Product Image DS1501W Curtis Industries IC RTC CLK/CALENDAR PAR 28-DIP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 3 V ~ 3.6 V
    RX-8581JE:B0 I2C-BUS Cherry Americas IC TRC CLK/CALENDAR - - - - - - - - -
    DS1553W-120 Curtis Industries IC RTC RAM Y2K 3.3V 120NS 28EDIP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 2.97 V ~ 3.63 V
    Product Image DS17887-5+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS2415P+ Curtis Industries IC RTC BINARY CNT SER 6-TSOC - -40°C ~ 85°C Unique ID Tube Surface Mount - - Binary Counter 2.5 V ~ 5.5 V
    MCP79402-I/ST Cree IC RTC CLK/CALENDAR I2C 8-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    DS1682S/T&R Curtis Industries IC RTC ELAPSED CNT I2C 8-SOIC - -40°C ~ 85°C Alarm, EEPROM Tape & Reel (TR) Surface Mount - - Elapsed Time Counter 2.5 V ~ 5.5 V
    Product Image ISL12058IRTZ Bel IC RTC CLK/CALENDAR I2C 8-TDFN - -40°C ~ 85°C Alarm, Leap Year Tube Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image M41T11MH6E Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 28-SOIC - -40°C ~ 85°C Leap Year, NVSRAM Tube Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    MCP79401T-I/ST Cree IC RTC CLK/CALENDAR I2C 8-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS17487N-3 Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 2.7 V ~ 3.7 V
    Product Image MCP79411-I/SN Cree IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    ISL1208IB8-TK Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, SRAM Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    RX8900CE:UB6 Cherry Americas IC TRC CLK/CALENDAR - - - - - RoHS Compliant - - -
    DS1558Y+TRL Curtis Industries IC RTC CLK/CALENDAR PAR 48-LQFP - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer, Y2K Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    DS1672-33 Curtis Industries IC RTC BINARY CNT I2C 8-DIP - -40°C ~ 85°C Trickle-Charger Tube Through Hole - - Binary Counter 2.97 V ~ 3.63 V
    Product Image DS17485E-5 Curtis Industries IC RTC CLK/CALENDAR PAR 28-TSOP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tray Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image ISL1220IUZ Bel IC RTC CLK/CALENDAR I2C 10-MSOP - -40°C ~ 85°C Alarm, Leap Year, SRAM Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image CDP68HC68T1EZ Bel IC RTC CLK/CALENDAR SPI 16-DIP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Watchdog Timer Tray Through Hole - - Clock/Calendar 3 V ~ 6 V
    Product Image DS17887-3-IND Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 2.7 V ~ 3.7 V
    RX8900CE:UBB Cherry Americas IC TRC CLK/CALENDAR - - - - - RoHS Compliant - - -
    Product Image DS1685E-3+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-TSSOP - 0°C ~ 70°C Alarm, NVSRAM, Square Wave Output, Y2K Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.7 V
    Product Image DS1343E-3+T&R Curtis Industries IC RTC CLK/CALENDAR SPI 20-TSSOP - -40°C ~ 85°C Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    DS1689SN Curtis Industries IC RTC CLK/CALENDAR PAR 28-SOIC - -40°C ~ 85°C NVSRAM Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.3 V, 4.5 V ~ 5.5 V
    Product Image M48T129V-85PM1 Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 32-DIP - 0°C ~ 70°C Alarm, Leap Year, Watchdog Timer Tube Through Hole - - Clock/Calendar 3 V ~ 3.6 V
    Product Image ISL12029IV27AZ Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    BQ3285ESSTRG4 Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 24-QSOP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1673E-5+T&R Curtis Industries IC RTC SYSTEM CTRLR SER 20-TSSOP - 0°C ~ 70°C Alarm, Leap Year, Watchdog Timer Tape & Reel (TR) Surface Mount - - Portable System Controller 4.5 V ~ 5.5 V
    DS1689SN+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-SOIC - -40°C ~ 85°C NVSRAM Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.3 V, 4.5 V ~ 5.5 V
    DP8570AV/NOPB Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 28-PLCC - -40°C ~ 85°C Alarm, Leap Year Tube Surface Mount - - Timer Clock Peripheral (TCP) 4.5 V ~ 5.5 V
    DS1746W-120IND Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - -40°C ~ 85°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 2.97 V ~ 3.63 V
    Product Image DS1743W-150 Curtis Industries IC RTC CLK/CALENDAR PAR 28-EDIP - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 2.97 V ~ 3.63 V
    AB0814-T3 Essentra Components IC RTC CLK/CALENDAR SPI 16-QFN - -40°C ~ 85°C Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer Original-Reel® Surface Mount - - Clock/Calendar 1.7 V ~ 3.6 V
    Product Image M41ST85WMH6TR Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 28-SOH - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 3.6 V
    RX-8035SA:AA3:PURE SN Cherry Americas IC RTC EVENT REC I2C 14-SOP - -40°C ~ 85°C Alarm Tape & Reel (TR) Surface Mount - - Time Event Recorder 2.4 V ~ 5.5 V
    Product Image DS17485S-3 Curtis Industries IC RTC CLK/CALENDAR PAR 24-SOIC - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.7 V
    X1226V8IZT1 Bel IC RTC CLK/CALENDAR I2C 8-TSSOP - -40°C ~ 85°C Alarm, Leap Year Cut Tape (CT) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    DS1500W Curtis Industries IC RTC CLK/CALENDAR PAR 32-DIP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 3 V ~ 3.6 V
    Product Image MCP7940N-I/MS Cree IC RTC CLK/CALENDAR I2C 8-MSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS1747WP-120 Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Surface Mount - - Clock/Calendar 2.97 V ~ 3.63 V
    Product Image M48T201V-85MH1E Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 44-SOH - 0°C ~ 70°C Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K Tube Surface Mount - - Clock/Calendar 3 V ~ 3.6 V
    ISL12028IB27AZ-T Bel IC RTC CLK/CALENDAR I2C 14-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    ISL12026AIBZ-T Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    X1226V8IZ Bel IC RTC CLK/CALENDAR I2C 8-TSSOP - -40°C ~ 85°C Alarm, Leap Year Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    S-35399A03-J8T2G Critical Link IC RTC CLK/CALENDAR I2C 8SOP - -40°C ~ 85°C Alarm, Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.3 V ~ 5.5 V
    Product Image DS1244W-120+ Curtis Industries IC RTC PHANTOM PAR 28-DIP - 0°C ~ 70°C Leap Year, NVSRAM Tube Through Hole - - Phantom Time Chip 2.97 V ~ 3.63 V
    Product Image ISL12058IRTZ-T Bel IC RTC CLK/CALENDAR I2C 8-TDFN - -40°C ~ 85°C Alarm, Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image DS1685EN-5/T&R Curtis Industries IC RTC CLK/CALENDAR PAR 24-TSSOP - -40°C ~ 85°C Alarm, NVSRAM, Square Wave Output, Y2K Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image M48T37Y-70MH1E Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 44-SOH - 0°C ~ 70°C Alarm, Leap Year, Watchdog Timer Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    DS1615 Curtis Industries IC RTC TEMP REC SER 16-DIP - -40°C ~ 85°C Alarm, Leap Year, Unique ID, Y2K Tube Through Hole - - Temperature Recorder 4 V ~ 5.5 V
    Product Image MCP795W20-I/SL Cree IC RTC CLK/CALENDAR SPI 14-SOIC - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image DS1501YEN+T&R Curtis Industries IC RTC CLK/CALENDAR PAR 28-TSOP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image AB-RTCMC-32.768KHZ-B5ZE-S3-T Essentra Components IC RTC CLK/CALENDAR I2C MODULE - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.2 V ~ 5.5 V
    Product Image DS1743-70 Curtis Industries IC RTC CLK/CALENDAR PAR 28-EDIP - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1347T+T&R Curtis Industries IC RTC CLK/CALENDAR SPI 8-TDFN - -40°C ~ 85°C Alarm, Leap Year, SRAM Cut Tape (CT) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    Product Image MCP79410-I/MS Cree IC RTC CLK/CALENDAR I2C 8-MSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    X1227S8-4.5A Bel IC RTC CLK/CALENDAR I2C 8-SOIC - 0°C ~ 70°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    DS1340Z-3 Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Leap Year, Trickle-Charger Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1315E-33+ Curtis Industries IC RTC PHANTOM PAR 20-TSSOP - 0°C ~ 70°C Leap Year Tube Surface Mount - - Phantom Time Chip 3 V ~ 3.6 V
    RX8900CE:UB3 Cherry Americas IC TRC CLK/CALENDAR - - - - - RoHS Compliant - - -
    X1228S14Z-2.7A Bel IC RTC CLK/CALENDAR I2C 14-SOIC - 0°C ~ 70°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    ISL12027IVZ Bel IC RTC CLK/CALENDAR I2C 8-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image RTC-4543SB:B3 ROHS Cherry Americas IC RTC CLK/CALENDAR SER 18-SOP - -40°C ~ 85°C Leap Year Original-Reel® Surface Mount - - Clock/Calendar 2.5 V ~ 5.5 V
    Product Image DS1500WE Curtis Industries IC RTC CLK/CALENDAR PAR 32-TSOP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tray Surface Mount - - Clock/Calendar 3 V ~ 3.6 V
    ISL12029IB30AZ Bel IC RTC CLK/CALENDAR I2C 14-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image X1228V14-4.5A Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - 0°C ~ 70°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1685E-5+T&R Curtis Industries IC RTC CLK/CALENDAR PAR 24-TSSOP - 0°C ~ 70°C Alarm, NVSRAM, Square Wave Output, Y2K Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image X1288V14T1 Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1341U+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-USOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image MCP795W11-I/ST Cree IC RTC CLK/CALENDAR SPI 14-TSSOP - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image RTC-72423A0:PURE SN Cherry Americas IC RTC CLK/CALENDAR PAR 24-SOP - -40°C ~ 85°C Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image M41T82ZM6F Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, SRAM, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.38 V ~ 5.5 V
    Product Image M48T35AV-10MH1E Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 28SOH - 0°C ~ 70°C Leap Year Tube Surface Mount - - Clock/Calendar 3 V ~ 3.6 V
    Product Image RX-4803SA:UB PURE SN Cherry Americas IC TRC CLK/CALENDAR - - - - - - - - -
    PCA2125TS/1,112 C&K IC RTC CLK/CALENDAR SPI 14-TSSOP - -40°C ~ 125°C Alarm, Leap Year, Square Wave Output, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.6 V ~ 5.5 V
    Product Image DS1647-120+ Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - 0°C ~ 70°C Leap Year, NVSRAM Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1554WP-120IND+ Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Surface Mount - - Clock/Calendar 2.97 V ~ 3.63 V
    BQ4802LYDWRG4 Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 28-SOIC - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 3.6 V
    DS1302ZN+T&R Curtis Industries IC RTC CLK/CALENDAR SER 8-SOIC - -40°C ~ 85°C Leap Year, NVSRAM, Trickle-Charger Tape & Reel (TR) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    Product Image DS1371U+T&R Curtis Industries IC RTC BINARY CNT I2C 8-USOP - -40°C ~ 85°C Alarm, Square Wave Output, Watchdog Timer Original-Reel® Surface Mount - - Binary Counter 1.7 V ~ 5.5 V
    Product Image DS1315S-5 Curtis Industries IC RTC PHANTOM PAR 16-SOIC - 0°C ~ 70°C Leap Year Tube Surface Mount - - Phantom Time Chip 4.5 V ~ 5.5 V
    PCF85363ATT1/AJ C&K IC RTC CLK/CALENDAR I2C 10TSSOP - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 0.9 V ~ 5.5 V
    Product Image ISL1208IU8Z-T7A Bel IC RTC CLK/CALENDAR I2C 8-MSOP - -40°C ~ 85°C Alarm, Leap Year, SRAM Cut Tape (CT) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image MCP79402T-I/SN Cree IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS1343D-3+ Curtis Industries IC RTC CLK/CAL SPI 14TDFN - -40°C ~ 85°C Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    DS1558Y+ Curtis Industries IC RTC CLK/CALENDAR PAR 48-LQFP - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer, Y2K Tray Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1306E+T&R Curtis Industries IC RTC CLK/CALENDAR SPI 20-TSSOP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger Cut Tape (CT) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    BQ3285LDSSG4 Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 24-QSOP - 0°C ~ 70°C Alarm, Daylight Savings, NVSRAM Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1747P-70IND Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - -40°C ~ 85°C Leap Year, NVSRAM, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS12887A Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image MCP795B21-I/ST Cree IC RTC CLK/CALENDAR SPI 14-TSSOP - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS14285S+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-SOIC - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS17285E-5 Curtis Industries IC RTC CLK/CALENDAR PAR 28-TSOP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tray Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    BQ4802YPW Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 28-TSSOP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    BQ4802YPWG4 Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 28-TSSOP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS17885EN-3+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-TSOP - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.7 V
    Product Image MCP795W11-I/SL Cree IC RTC CLK/CALENDAR SPI 14-SOIC - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    RX-8731LC:B PURE SN Cherry Americas IC TRC CLK/CALENDAR - - - - - - - - -
    DS1305 Curtis Industries IC RTC CLK/CALENDAR SPI 16-DIP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Trickle-Charger Tube Through Hole - - Clock/Calendar 2 V ~ 5.5 V
    DS1672-2+ Curtis Industries IC RTC BINARY CNT I2C 8-DIP - -40°C ~ 85°C Trickle-Charger Tube Through Hole - - Binary Counter 1.8 V ~ 2.2 V
    Product Image RX8900SA:UA0 PURE SN Cherry Americas IC RTC CLK/CALENDAR I2C 14-SOP - -40°C ~ 85°C Alarm Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.5 V ~ 5.5 V
    Product Image ISL1220IUZ-T Bel IC RTC CLK/CALENDAR I2C 10-MSOP - -40°C ~ 85°C Alarm, Leap Year, SRAM Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1673E-5 Curtis Industries IC RTC SYSTEM CTRLR SER 20-TSSOP - 0°C ~ 70°C Alarm, Leap Year, Watchdog Timer Tube Surface Mount - - Portable System Controller 4.5 V ~ 5.5 V
    Product Image ISL12024IRTCZ Bel IC RTC CLK/CALENDAR I2C 8-TDFN - -40°C ~ 85°C Alarm, Leap Year, Unique ID Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1685SN-5+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-SOIC - -40°C ~ 85°C Alarm, NVSRAM, Square Wave Output, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1342U+T&R Curtis Industries IC RTC CLK/CALENDAR I2C 8-USOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS1742-70+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1746W-120+ Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 2.97 V ~ 3.63 V
    ISL12022IBZ Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, SRAM Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    DS1391U-3+ Curtis Industries IC RTC CLK/CALENDAR SPI 10-USOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Trickle-Charger Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.3 V
    X1286V14I Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1340U-18+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-USOP - -40°C ~ 85°C Leap Year, Trickle-Charger Tube Surface Mount - - Clock/Calendar 1.71 V ~ 5.5 V
    Product Image DS12C887A+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1371U Curtis Industries IC RTC BINARY CNT I2C 8-USOP - -40°C ~ 85°C Alarm, Square Wave Output, Watchdog Timer Tube Surface Mount - - Binary Counter 1.7 V ~ 5.5 V
    Product Image DS1744-70+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-EDIP - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1343E-18+ Curtis Industries IC RTC CLK/CALENDAR SPI 20-TSSOP - -40°C ~ 85°C Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger Tube Surface Mount - - Clock/Calendar 1.71 V ~ 5.5 V
    ISL12027IBAZ-T Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image M48T12-70PC1 Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 24DIP - 0°C ~ 70°C Leap Year Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1685EN-5 Curtis Industries IC RTC CLK/CALENDAR PAR 24-TSSOP - -40°C ~ 85°C Alarm, NVSRAM, Square Wave Output, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1556P-70IND Curtis Industries IC RTC RAM Y2K 5V 70NS 34-PCM - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image ISL12029AIV27Z-T Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    PT7C4372AWEX Connor-Winfield DIGITAL CLOCK PRECISION ADJUSTME - - - - - - - - -
    Product Image DS1305EN+ Curtis Industries IC RTC CLK/CALENDAR SPI 20-TSSOP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Trickle-Charger Tube Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    DS1374U-3+ Curtis Industries IC RTC BINARY CNT I2C 10-USOP - -40°C ~ 85°C Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer Tube Surface Mount - - Binary Counter 2.7 V ~ 3.3 V
    Product Image ISL12028IVZ Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image MCP79401-I/SN Cree IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    ISL12024IBZ Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Unique ID Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image M41T0M6F Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C - Tape & Reel (TR) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    Product Image MCP795W12-I/SL Cree IC RTC CLK/CALENDAR SPI 14-SOIC - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    PCF85263ATT1/AJ C&K IC RTC CLK/CALENDAR I2C 10TSSOP - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer Original-Reel® Surface Mount - - Clock/Calendar 0.9 V ~ 5.5 V
    PT7C4307WE Connor-Winfield IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    DS1688S+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-SOIC - 0°C ~ 70°C Alarm, Leap Year, Square Wave Output, Unique ID Tube Surface Mount - - Clock/Calendar 2.7 V ~ 3.3 V, 4.5 V ~ 5.5 V
    DS1307N Curtis Industries IC RTC CLK/CALENDAR I2C 8-DIP - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    PCF8523TS/1,118 C&K IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.6 V ~ 5.5 V
    Product Image MCP795W10T-I/SL Cree IC RTC CLK/CALENDAR SPI 14-SOIC - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image DS1743-85IND+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-EDIP - -40°C ~ 85°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    MCP7940MT-I/MNY Cree IC RTC CLK/CALENDAR I2C 8-TDFN - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM Original-Reel® Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS1344E-33+ Curtis Industries IC RTC CLK/CALENDAR SPI 20-TSSOP - -40°C ~ 85°C Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger Tube Surface Mount - - Clock/Calendar 3 V ~ 5.5 V
    Product Image DS1374C-18# Curtis Industries IC RTC BINARY CNT I2C 16-SOIC - -40°C ~ 85°C Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer Tube Surface Mount - - Binary Counter 1.71 V ~ 1.89 V
    X1227V8Z-2.7A Bel IC RTC CLK/CALENDAR I2C 8-TSSOP - 0°C ~ 70°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1556-70IND+ Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image M48T35Y-70MH1E Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 28SOH - 0°C ~ 70°C Leap Year Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    RX-8581NB:B PURE SN Cherry Americas IC TRC CLK/CALENDAR - - - - - - - - -
    Product Image DS1554WP-120 Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tray Surface Mount - - Clock/Calendar 2.97 V ~ 3.63 V
    Product Image RX-8571LC:B0 PURE SN Cherry Americas IC RTC CLK/CALENDAR I2C 12-VSOJ - -40°C ~ 85°C Alarm, Leap Year, RAM Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.6 V ~ 5.5 V
    Product Image DS1318E+T&R Curtis Industries IC RTC ELAPSED CNT PAR 24-TSSOP - -40°C ~ 85°C Alarm, Square Wave Output Cut Tape (CT) Surface Mount - - Elapsed Time Counter 3 V ~ 3.6 V
    DS1558W+ Curtis Industries IC RTC CLK/CALENDAR PAR 48-LQFP - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer, Y2K Tray Surface Mount - - Clock/Calendar 2.97 V ~ 3.63 V
    Product Image DS1746WP-120 Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Surface Mount - - Clock/Calendar 2.97 V ~ 3.63 V
    X1227S8IZ-2.7A Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    DS1486-120+ Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    DS1340Z-33+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Leap Year, Trickle-Charger Tube Surface Mount - - Clock/Calendar 2.97 V ~ 5.5 V
    Product Image DS1501YEN+ Curtis Industries IC RTC CLK/CALENDAR PAR 28-TSOP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tray Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    DS1251WP-C01+ Curtis Industries IC RTC PHANTOM PAR 34PWRCP - 0°C ~ 70°C Leap Year, NVSRAM - - - - Phantom Time Chip 2.97 V ~ 3.63 V
    Product Image ISL12057IUZ Bel IC RTC CLK/CALENDAR I2C 8-MSOP - -40°C ~ 85°C Alarm, Leap Year Tube Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image ISL12029IV27Z Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    RX-8035LC:AA PURE SN Cherry Americas IC TRC CLK/CALENDAR - - - - - - - - -
    DS3232MZ/V+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC Automotive, AEC-Q100 -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM Tube Surface Mount - - Clock/Calendar 2.3 V ~ 4.5 V
    DS1338Z-18+ Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 1.71 V ~ 5.5 V
    Product Image MCP7940N-E/SN Cree IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 125°C Alarm, Leap Year, Square Wave Output, SRAM Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image MCP79510T-I/MS Cree IC RTC CLK/CALENDAR SPI 10-MSOP - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Cut Tape (CT) Surface Mount - - Clock/Calendar 1.8 V ~ 3.6 V
    Product Image ISL12028IVAZ-T Bel IC RTC CLK/CALENDAR I2C 14-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    DS1743-100 IND Curtis Industries IC RTC RAM Y2K 5V 100NS 28-EDIP - -40°C ~ 85°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image RX-8025SA:AC0 Cherry Americas IC RTC CLK/CALENDAR I2C 14-SOP - -40°C ~ 85°C Alarm, Leap Year Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.7 V ~ 5.5 V
    Product Image M48T08Y-10MH1F Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 28SOH - 0°C ~ 70°C Leap Year, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image MAX6900ETT+T Curtis Industries IC RTC CLK/CALENDAR I2C 6-TDFN - -40°C ~ 85°C Leap Year, NVSRAM Tape & Reel (TR) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    ISL1208IB8Z-TK Bel IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, SRAM Cut Tape (CT) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image RTC-8564JE0:ROHS Cherry Americas IC RTC CLK/CALENDAR I2C 20-VSOJ - -40°C ~ 85°C Alarm, Y2K Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    ISL12027IV27AZ Bel IC RTC CLK/CALENDAR I2C 8-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1315S-5+ Curtis Industries IC RTC PHANTOM PAR 16-SOIC - 0°C ~ 70°C Leap Year Tube Surface Mount - - Phantom Time Chip 4.5 V ~ 5.5 V
    DS1307Z+T&R/C01 Curtis Industries IC RTC CLK/CALENDAR I2C 8-SOIC - 0°C ~ 70°C Leap Year, NVSRAM, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image MCP795B21T-I/SL Cree IC RTC CLK/CALENDAR SPI 14-SOIC - -40°C ~ 85°C Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    DS1501WSN+T&R Curtis Industries IC RTC CLK/CALENDAR PAR 28-SOIC - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tape & Reel (TR) Surface Mount - - Clock/Calendar 3 V ~ 3.6 V
    M41ST87WSS6F Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 20-SSOP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer Cut Tape (CT) Surface Mount - - Clock/Calendar 2.7 V ~ 3.6 V
    Product Image MCP79412T-I/MS Cree IC RTC CLK/CALENDAR I2C 8-MSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    M41T81SMY6E Conxall / Switchcraft IC RTC CLK/CALENDAR I2C 18-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    1338AC-18SRGI8 CUI, Inc. IC RTC CLK/CALENDAR I2C 16-SOIC - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS1742-100IND+ Curtis Industries IC RTC CLK/CALENDAR PAR 24-EDIP - -40°C ~ 85°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    RTC-7301DG:B ROHS Cherry Americas IC RTC CLK/CALENDAR PAR 18-DIP - -40°C ~ 85°C Alarm, Leap Year - Through Hole Tube RTC-7301DG:B ROHS Clock/Calendar -
    Product Image M48T201Y-70MH1E Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 44-SOH - 0°C ~ 70°C Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    DP8570AVX Bomar (Winchester Electronics) IC RTC TCP PAR 28-PLCC - -40°C ~ 85°C Alarm, Leap Year Tape & Reel (TR) Surface Mount - - Timer Clock Peripheral (TCP) 4.5 V ~ 5.5 V
    BQ4850YMA-85N Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 32-DIP - -40°C ~ 85°C Alarm Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    1337AGDVGI8 CUI, Inc. IC RTC CLK/CALENDAR I2C 8-TSSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS1340C-3# Curtis Industries IC RTC CLK/CALENDAR I2C 16-SOIC - -40°C ~ 85°C Leap Year, Trickle-Charger Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image DS1556P-70+ Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tray Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1251YP-70 Curtis Industries IC RTC PHANTOM PAR 34-PCM - 0°C ~ 70°C Leap Year, NVSRAM Tube Surface Mount - - Phantom Time Chip 4.5 V ~ 5.5 V
    DS3234S# Curtis Industries IC RTC CLK/CALENDAR SPI 20-SOIC - 0°C ~ 70°C Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal Tube Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    PT7C43190WEX Connor-Winfield 3-WIRE REAL-TIME CLOCK - - - - - - - - -
    BQ4845YP-A4 Bomar (Winchester Electronics) IC RTC CLK/CALENDAR PAR 28-DIP - 0°C ~ 70°C Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
    ISL12028IB27Z-T Bel IC RTC CLK/CALENDAR I2C 14-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image ISL1209IU10Z Bel IC RTC EVENT REC I2C 10-MSOP - -40°C ~ 85°C Alarm, Leap Year, SRAM Tube Surface Mount - - Time Event Recorder 2.7 V ~ 5.5 V
    Product Image DS17285SN-5 Curtis Industries IC RTC CLK/CALENDAR PAR 24-SOIC - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1554W-120IND Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 2.97 V ~ 3.63 V
    Product Image DS1746W-120 Curtis Industries IC RTC CLK/CALENDAR PAR 32-EDIP - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Through Hole - - Clock/Calendar 2.97 V ~ 3.63 V
    DS1672-2 Curtis Industries IC RTC BINARY CNT I2C 8-DIP - -40°C ~ 85°C Trickle-Charger Tube Through Hole - - Binary Counter 1.8 V ~ 2.2 V
    Product Image DS1338U-18 Curtis Industries IC RTC CLK/CALENDAR I2C 8-USOP - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 1.71 V ~ 5.5 V
    Product Image M41T94MH6E Conxall / Switchcraft IC RTC CLK/CALENDAR SPI 28-SOIC - -40°C ~ 85°C Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    PT7C4311WE Connor-Winfield IC RTC CLK/CALENDAR I2C SOIC - -40°C ~ 85°C Leap Year, Square Wave Output, Y2K Tube Surface Mount - - Clock/Calendar 1.2 V ~ 5.5 V
    DS1672S-33 Curtis Industries IC RTC BINARY CNT I2C 8-SOIC - -40°C ~ 85°C Trickle-Charger Tube Surface Mount - - Binary Counter 2.97 V ~ 3.63 V
    Product Image DS1646P-120+ Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - 0°C ~ 70°C Leap Year, NVSRAM Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image DS1744P-70 Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - 0°C ~ 70°C Leap Year, NVSRAM, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    Product Image RTC-7301SF:B3 ROHS Cherry Americas IC RTC CLK/CALENDAR PAR 24-SSOP - -40°C ~ 85°C Alarm, Leap Year Cut Tape (CT) Surface Mount - - Clock/Calendar 2.4 V ~ 5.5 V
    1338AC-18SRGI CUI, Inc. IC RTC CLK/CALENDAR I2C 16-SOIC - -40°C ~ 85°C Leap Year, NVSRAM, Square Wave Output Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    1339-2DVGI8 CUI, Inc. IC RTC CLK/CALENDAR I2C 8-MSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, Trickle-Charger Tape & Reel (TR) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
    Product Image M48T35-70PC1 Conxall / Switchcraft IC RTC CLK/CALENDAR PAR 28DIP - 0°C ~ 70°C Leap Year Tube Through Hole - - Clock/Calendar 4.75 V ~ 5.5 V
    Product Image DS1284QN/T&R Curtis Industries IC RTC CLK/CALENDAR PAR 28-PLCC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    PCF8563T/F4,112 C&K IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image MCP79401T-I/SN Cree IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
    Product Image DS1554P-70IND+ Curtis Industries IC RTC CLK/CALENDAR PAR 34-PCM - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
    ISL12029AIB27Z Bel IC RTC CLK/CALENDAR I2C 14-SOIC - -40°C ~ 85°C Alarm, Leap Year, Supervisor, Watchdog Timer Tube Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
    Product Image RX-8025SA:AA:ROHS Cherry Americas IC RTC CLK/CALENDAR I2C 14-SOP - -40°C ~ 85°C Alarm, Leap Year Tube Surface Mount - - Clock/Calendar 1.7 V ~ 5.5 V
    Product Image DS14285SN/T&R Curtis Industries IC RTC CLK/CALENDAR PAR 24-SOIC - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Tape & Reel (TR) Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V


    About Clock/Timing - Real Time Clocks

    Real-time clocks (RTCs) are electronic devices that keep track of the current time and date with high accuracy, independent of external power sources. They typically include a built-in crystal oscillator and a battery backup to ensure continuous timekeeping even when the main power is off. RTCs are commonly used in applications such as consumer electronics, industrial automation, medical devices, and automotive systems where precise timekeeping is essential for scheduling tasks, logging events, and time-stamping data.