DS1302 REAL TIME CLOCK MODULE

Real-time clock module with possible battery backup using the easy-to-use DS1302 chip. The DS1302 chip uses a simple serial interface and sample code is available for Arduino, Raspberry Pi and many others.

The real-time clock/calendar circuit provides seconds, hours, days, weeks, months, years of information, a number of days in the month and leap year can automatically adjust. The clock operation instructions through the AM/PM decided to use 24 or 12-hour format.

Between DS1302 and single-chip microcomputer can simply use synchronous serial communication method, only three lines:

• • RST
  • I/O reset the data line
  • SCLK serial clock.

Clock /RAM read/write data to a byte character set or as many as 31-byte communication. DS1302 work power consumption is very low to keep the data and clock information when power is less than 1mW.

Electrical Characteristics:

• • The real-time clock counts minutes, seconds, date, hours, month day of the week, year and leap-year compensation up to 2100.
  • 318 temporary data storage RAM
  • Working current of 2.0V, less than 300nA
  • Read / Write clock or RAM data with two kinds of mode of single-byte transfer mode and multi-byte character set
  • 8 pin DIP package or optional 8 pin SOIC package based on the surface assembly
  • Simple 3 wire interface
  • Compatible with TTL Vcc=5V
  • Double power supply pipe for main power and backup power supply.

Package Includes:

• • 1 x DS1302 RTC Real Time Clock Module with Battery