DS1258AB, DS1258Y 128k X 16 Nonvolatile SRAM

The DS1258 128k x 16 nonvolatile (NV) SRAMs are 2,097,152-bit fully static, NV SRAMs organized as 131,072 words by 16 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry that constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. DIP-package DS1258 devices CAN be used in place of solutions that build NV 128k x 16 memory by utilizing a variety of Discrete components. There is no limit on the number of write cycles that CAN be executed and no additional support circuitry is required for Microprocessor interfacing.
By Maxim Integrated Products
DS1258Y 's PackagesDS1258Y 's pdf datasheet

DS1258Y Pinout, Pinouts
DS1258Y pinout,Pin out
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