DS1213C Integrated Circuit Chip SmartSocket 256k 28-pin , 600 mil DIP socket

DS1213C SmartSocket 256k

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

PIN ASSIGNMENT

PIN DESCRIPTION

CE                       – Conditioned Chip Enable

V_CC                     – Switched V_CC

GND                     – Ground

All pins pass through except 20 and 28.

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 V_CC 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.

Using the SmartSocket saves printed circuit board space since the SRAM/SmartSocket combination occupies no more area than the memory alone. The SmartSocket uses only Pins 20 and 28 for RAM control. All other pins are passed straight through.

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