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MEMORY DATABOOK - Al Kossow's Bitsavers

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----------------... STATIC RAM· MSM51257LRS/JS •WRITE CYCLE~-------------~C------------~CSI/O (DIN) ------~I----~I/O (DOUT) _______ JLOW VCC DATA RETENTION CHARACTERISTICS(Ta = O°C to +70°C, unless otherwise noted)Parameter Symbol Min. Typ. Max. Unit ConditionsVCC for Data Retention VCCH 2 V C S ~ VCC - 0.2VData Retention Current ICCH 1 50 p.A VCC = 3V, CS ~ VCC - 0.2VCS to Data Retention Time tsu 0 nsOperation Recovery Time tR tRC ns323

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