DS1307 Real Time Clock Module

Description

• Supply 5V DC
• 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