M48Z35AY - 256 Kbit 32Kb x8 ZEROPOWER SRAM
The M48Z35AY/35AV ZEROPOWER® RAM is a 32 Kbit x8 non-volatile static RAM that integrates power-fail deselect circuitry and battery control logic on a single die.
The monolithic chip is available in two special packages to provide a highly integrated battery backed-up memory solution.
Table 1.
Signal
M48Z35AY M48Z35AV 256 Kbit (32Kb x8) ZEROPOWER® SRAM s INTEGRATED ULTRA LOW POWER SRAM, POWER-FAIL CONTROL CIRCUIT and BATTERY READ CYCLE TIME EQUALS WRITE CYCLE TIME BATTERY LOW FLAG (BOK) AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage): M48Z35AY: 4.20V ≤ VPFD ≤ 4.50V M48Z35AV: 2.7V ≤ V PFD ≤ 3.0V 28 SNAPHAT (SH) Battery s s s 28 1 s 1 PCDIP28 (PC) Battery CAPHAT SOH28 (MH) s SELF-CONTAINED BATTER
M48Z35AY Features
* (1) Read Cycle Time Address Valid to Output Valid
