DS1213B集成电路（IC）的控制器规格书PDF中文资料

DESCRIPTION

The DS1213B SmartSocket is a 28-pin, 600 mil DIP socket with a built-in CMOS controller circuit and an embedded lithium energy source. It accepts either 24-pin 2K x 8 (lower-justified) or 28-pin 8K x 8 JEDEC bytewide CMOS static RAM. When the socket is mated with a CMOS RAM, it provides a complete solution to problems associated with memory volatility. The Smart-Socket monitors incoming VCC for an out-of-tolerance condition. When such a condition occurs, the internal lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption.

FEATURES

■ Accepts standard 2K x 8 or 8K x 8 CMOS static RAMs

■ Embedded lithium energy cell retains RAM data

■ Self-contained circuitry safeguards data

■ Data retention time is greater than 10 years with proper RAM selection

■ IC socket permits upgrading from 2K x 8 to 8K RAM

■ Proven gas-tight socket contacts

■ Operating temperature range 0°C to 70°C