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DS1307 Datasheet Real-time Clock

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: DS1307 64 x 8, Serial, I2C Real-Time Clock GENERAL.

General Description

The DS1307 serial real-time clock (RTC) is a lowpower, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM.

Address and data are transferred serially through an I2C, bidirectional bus.

The clock/calendar provides seconds, minutes, hours, day, date, month, and year information.

Key Features

  • Completely Manages All Timekeeping Functions o Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100 o 56-Byte, Battery-Backed, General-Purpose RAM with Unlimited Writes o Programmable Square-Wave Output Signal.
  • Simple Serial Port Interfaces to Most Microcontrollers o I2C Serial Interface.
  • Low Power Operation Extends Battery Backup Run Time o Consumes Less than 500nA in BatteryBackup Mode w.

DS1307 Distributor