M48Z35AV-100MH1 Datasheet - STMicroelectronics

DESCRIPTION
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 in
tegrated battery backed-up memory solution.

■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≤VPFD ≤3.0V
■SELF-CONTAINED BATTERY in the CAPHAT DIP PACKAGE
■PACKAGING INCLUDES a 28-LEAD SOIC and SNAPHAT® TOP (to be Ordered Separately)
■SOIC PACKAGE PROVIDES DIRECT CONNECTION for a SNAPHAT TOP which CONTAINS the BATTERY and CRYSTAL
■PIN and FUNCTION COMPATIBLE with JEDEC STANDARD 32K x8 SRAMs