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    Text: DATA SHEET NEC MOS INTEGRATED CIRCUIT /¿PD43257B 256K-B1T CMOS STATIC RAM 32K-WORD BY 8-BIT Description The /¿PD43257B is a high speed, low power, and 262,144 bits 32,768 w ords by 8 bits C M OS static RAM. Battery backup is available (L, LL versions). And this product has tw o chip enable pins (CE1, CE2) to extend


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    PD43257B 256K-B1T 32K-WORD PD43257B 28-pin PD43257BG 43257BC PDF