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DS1307 - DS1307 Real Time Clock - Buy DS1307


Photograph
DS1307 Dallas Semiconductor IC
Features
Real-time clock counts seconds, minutes, hours, date, month, day, year, and leap year to 2100
56-bytes general-purpose NV RAM
Accuracy > 2 minutes/month at 25oC
Automatic power management circuitry
2-wire serial interface
Programmable square wave output signal
Uses <300nA in backup mode with oscillator running

Pin Description

Pin Number

Description

1

X1 - 32.768kHz Crystal Connection

2

X2 - 32.768kHz Crystal Connection

3

Vbat - +3V Battery Input

4

GND - Ground

5

SDA - Serial Data

6

SCLK - Serial Clock

7

SQW/OUT - Squarewave Output

8

Vcc - Primary Power Supply

Pin Layout
DS1307 Dallas Semiconductor IC

Dimensional Drawing
DIP 8 Dimension Drawing
DIP 8 Dimension Drawing

Technical Data
Data Sheet

Dallas Semiconductor - Data Sheet for DS1307


Application Notes

Interfacing the DS1307 with an 8051-Compatible Microcontroller

Crystal Considerations with Dallas Real-Time Clocks

Using the DS32kHz with Dallas RTC's

Design Considerations for Dallas Real-Time Clocks






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