FEATURES
DESCRIPTION
The M48Z128/128Y ZEROPOWER RAM is a 128 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.
■ INTEGRATED LOW POWER SRAM,
POWER-FAIL CONTROL CIRCUIT and
BATTERY
■ CONVENTIONAL SRAM OPERATION;
UNLIMITED WRITE CYCLES
■ 10 YEARS of DATA RETENTION in the
ABSENCE of POWER
■ AUTOMATIC POWER-FAIL CHIP DESELECT
and WRITE PROTECTION
■ WRITE PROTECT VOLTAGES
(VPFD = Power-fail Deselect Voltage):
– M48Z128: 4.50V ≤ VPFD ≤ 4.75V
– M48Z128Y: 4.20V ≤ VPFD ≤ 4.50V
■ BATTERY INTERNALLY ISOLATED UNTIL
POWER IS APPLIED
■ PIN and FUNCTION COMPATIBLE with
JEDEC STANDARD 128K x 8 SRAMs
■ SURFACE MOUNT CHIP SET PACKAGING
INCLUDES a 28-PIN SOIC and a 32-LEAD
TSOP (SNAPHAT TOP TO BE ORDERED
SEPARATELY)
■ SOIC PACKAGE PROVIDES DIRECT
CONNECTION for a SNAPHAT TOP WHICH
CONTAINS the BATTERY
■ SNAPHAT HOUSING (BATTERY) IS
REPLACEABLE
STMicroelectronics is a global independent semiconductor company and is a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence trends.