Serial I / O port pin makes the least number of ways

Wide range of operating voltage 2.0V - 5.5V

When The working voltage is 2.0V, the current is less than 300nA

Read/write clock or RAM data have two transmission way: Single-byte / many bytes group

8 feet DIP assembly or optional 8 feet SOIC encapsulation according to surface assembly

Simple 3 line interface

Optional industrial temperature range -40°C to +85°C

Dual power tube for the main power and backup power supply

TTL compatible(Vcc = 5V)