Clock/Timing - Real Time Clocks

Clock/Timing - Real Time Clocks

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Mounting Type
RoHS Status
Manufacturer Part Number
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Image Part Number Manufacturer Description Series Operating Temperature Features Packaging Mounting Type RoHS Status Manufacturer Part Number Type Voltage - Supply
PT7C4337UE Diodes Incorporated IC RTC CLK/CALENDAR I2C MSOP - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output Tube Surface Mount - - Clock/Calendar 1.8 V ~ 5.5 V
DS12R887-5 Maxim Integrated IC RTC CLK/CALENDAR PAR 48-BGA - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger Tray Surface Mount - - Clock/Calendar 4.5 V ~ 5.5 V
MAX6910EO33+T Maxim Integrated IC RTC I2C COMPAT 20-QSOP - - - Tape & Reel (TR) Surface Mount - - Clock/Calendar/Supervisor 3 V ~ 3.6 V
DS1501WZ+T&R Maxim Integrated IC RTC CLK/CALENDAR PAR 28-SOIC - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Tape & Reel (TR) Surface Mount - - Clock/Calendar 3 V ~ 3.6 V
DS17487-3IND+ Maxim Integrated 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
ISL12082IB8Z-T Intersil IC RTC CLK/CALENDAR I2C 8-SOIC - -40°C ~ 85°C Alarm, Leap Year, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
MCP795W11T-I/SL Micrel / Microchip Technology 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 ~ 3.6 V
ISL12022MAIBZ-T Intersil IC RTC CLK/CALENDAR I2C 20-SOIC - -40°C ~ 85°C Alarm, Daylight Savings, Leap Year, SRAM Tape & Reel (TR) Surface Mount - - Clock/Calendar 2.7 V ~ 5.5 V
1337GDVGI8 IDT (Integrated Device Technology) 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
X1227S8I Intersil 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

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.