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DS1307 Real Time Clock (RTC) Module



The DS1307 serial real-time clock (RTC) is a low-power, 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 12-hour 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. Key Features Completely Manages All Timekeeping Functions 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 56-Byte, Battery-Backed, General-Purpose RAM with Unlimited Writes Programmable Square-Wave Output Signal Simple Serial Port Interfaces to Most Microcontrollers I2C Serial Interface Low Power Operation Extends Battery Backup Run Time Consumes Less than 500nA in Battery-Backup Mode with Oscillator Running Automatic Power-Fail Detect and Switch Circuitry 8-Pin DIP and 8-Pin SO Minimizes Required Space Optional Industrial Temperature Range: -40°C to +85°C Supports Operation in a Wide Range of Applications

Technical Specifications:

  • Provide clock signal for microcontroller. Cascade other I2C devices
  • Memory storage: 24C32 32K I2C EEPROM. With LIR2032 rechargeable lithium battery and rechargeable circuit
  • With reading and writing function. Using time: About 1 year (Fully charged)
  • With full BCD clock calendar chip of 56byte non-volatile RAM. Address and data transmission via serial cable with dual-line dual-direction. The chip can provide second, minute, hour etc information.. AM/PM mark, for working 24-hour or 12-hour
  • DS1307 I2C RTC DS1307 24C32 Real Time Clock Module

Package Includes:

  • 1 Piece-DS1307 Real Time Clock (RTC) Module
Weight 25 g
Dimensions 25 × 25 × 5 mm


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SKU: ERMDL012 Category: Tag: