DS1213D SmartSocket 256k/1M
The DS1213D SmartSocket is a 32-pin, 600mil DIP socket with a built-in CMOS controller circuit and an embedded lithium energy source. It accepts 32k x 8 or 128K 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 SmartSocket monitors incoming VCC for an out-of-tolerance condition. When such a condition occurs, an 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 SRAM alone. The SmartSocket uses only Pins 22, 30, and 32 for RAM control. All other pins are passed straight through.
See the DS1213B SmartSocket data sheet for technical details.
By Maxim Integrated Products
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