Clock/Timing - Real Time Clocks

Clock/Timing - Real Time Clocks

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Manufacturer
Series
Operating Temperature
Features
Packaging
Mounting Type
RoHS Status
Manufacturer Part Number
Type
Voltage - Supply

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Image Part Number Manufacturer Description Series Operating Temperature Features Packaging Mounting Type RoHS Status Manufacturer Part Number Type Voltage - Supply
DS1553-70 Maxim Integrated IC RTC CLK/CALENDAR PAR 28-EDIP - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Through Hole - - Clock/Calendar 4.5 V ~ 5.5 V
PCF2127T/2Y NXP Semiconductors / Freescale IC RTC CLK/CAL I2C/SPI 16-SOIC - -40°C ~ 85°C Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer Tape & Reel (TR) Surface Mount - - Clock/Calendar 1.8 V ~ 4.2 V
ISL12028IV27AZ Intersil 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
DS1556WP-120+ Maxim Integrated IC RTC CLK/CALENDAR PAR 34-PCM - 0°C ~ 70°C Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tube Surface Mount - - Clock/Calendar 2.97 V ~ 3.63 V
DS1306E/T&R Maxim Integrated IC RTC CLK/CALENDAR SPI 20-TSSOP - -40°C ~ 85°C Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger Tape & Reel (TR) Surface Mount - - Clock/Calendar 2 V ~ 5.5 V
DS1251WP-120+C01 Maxim Integrated IC NVSRAM 34PWRCP - 0°C ~ 70°C Leap Year, NVSRAM Tube Surface Mount - - Phantom Time Chip 2.97 V ~ 3.63 V
DS12885S Maxim Integrated 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
RTC-72423A:3:ROHS Epson 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
RX6110SA:BB PURE SN Epson IC TRC CLK/CALENDAR - - - - - - - - -
M48T02-150PC1 STMicroelectronics IC RTC CLK/CALENDAR PAR 24DIP Timekeeper® 0°C ~ 70°C Leap Year Tube Through Hole - - Clock/Calendar 4.75 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.