DS1213C Datasheet PDF - Dallas Semiconductor -> Maxim Integrated

DESCRIPTION
The DS1213C SmartSocket is a 28-pin, 600 mil DIP socket with a built-in CMOS controller circuit and an embedded lithium energy source. It accepts a 32K x 8 JEDEC bytewide CMOS static RAM. When the socket is mated with a CMOS RAM, it provides a complete solution o problems associated with memory volatility. The SmartSocket 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 32K 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 the proper RAM selection
◾ Proven gas-tight socket contacts
◾ Operating temperature range 0°C to 70°C