Real Time Clock Module + EEPROM


I2C Real-Time-Clock Module + 4K EEPROM.

In stock

SKU: MOD-DS1307-01-1X Category:

Product Description

This real time clock (RTC) module is upon on the Dallas DS1307 clock/calender chip. The module also includes an Atmel AT24C32, a non-volatile 4-Kbyte EEPROM. Both devices are unified by the single I2C serial bus.

0xD0 DS1307 Write
0xD1 DS1307 Read
0xA0 AT24C32 Write
0xA1 AT24C32 Read


The RTC can be maintained by using a CR2032 lithium button cell (not supplied), the cell holder is mounted on the underside of the PCB. The module can be modified to use a rechargeable lithium-ion cell, LIR2032, by replacing just two resistors.

Provision is made for a 3-pin DS18B20 digital temperature sensor (not included).

Operating Voltage: 4V5 to 5V5.
Interface: I2C.
Size (Approx): 28.5mm x 27.5mm x 10mm.
PCB Thickness: 1.6mm.
Mounting Holes: 3mm (2 off).

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