Datasheet4U Logo Datasheet4U.com

DS1307 - Real-Time Clock

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.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
DS1307 64 X 8 Serial Real Time Clock TGS
DS1300-3 AC-DC / Distributed Power Front-End 2U Emerson
DS1302 Trickle-Charge Timekeeping Chip Maxim Integrated
DS1302 Trickle Charge Timekeeping Chip TGS
DS1305 Serial Alarm Real-Time Clock Maxim Integrated

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
DS1338 I2C RTC
DS1086 Spread-Spectrum EconOscillator
DS1216 SmartWatch RAM / SmartWatch ROM
DS1631 High-Precision Digital Thermometer/Thermostat
DS1631A High-Precision Digital Thermometer/Thermostat

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DS1307 64 x 8, Serial, I2C Real-Time Clock 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. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.