Specifications and Features:
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.