Arduino Compatible DS1302 RTC (Real Time Clock) Module (Battery Free) - M481B

The DS1302 timing chip contains a real-time clock/calendar and 31 bytes of static RAM. It communicates with a microprocessor through a simple serial interface. The real-time clock/calendar provides information regarding seconds, minutes, hours, day, date, month, and year. The last day of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap years. The clock operates in both 24-hour and 12-hour formats with AM/PM indication.

Features:

● Manages all timing functions: the real-time clock counts seconds, minutes, hours, day of the month, day of the week, and leap years. ● 31x8 battery-backed general-purpose RAM

● Simple serial port interfaces for most microcontrollers: simple 3-wire interface

● TTL-compatible: VCC=5V

● Single-byte or multi-byte data transfer (burst mode) for reading or writing from clock or RAM

● Low-power operation extends battery life: 2.0 to 5.5V at full power

● Uses less than 300nA at 2.0V

● Operating temperature: 0 to 70°C

● Power: CR2032 battery (not included)