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M48Z129Y

Part Number	M48Z129Y
Manufacturer	ST Microelectronics
Description	3.3V/5V 1 Mbit 128Kb x8 ZEROPOWER SRAM
Published	Apr 29, 2005
Detailed Description	M48Z129Y M48Z129V 3.3V/5V 1 Mbit (128Kb x8) ZEROPOWER® SRAM s INTEGRATED ULTRA LOW POWER SRAM, POWER-FAIL CONTROL CIRCU...
Datasheet	M48Z129Y PDF File

Overview

M48Z129Y M48Z129V 3.
3V/5V 1 Mbit (128Kb x8) ZEROPOWER® SRAM s INTEGRATED ULTRA LOW POWER SRAM, POWER-FAIL CONTROL CIRCUIT, and BATTERY AUTOMATIC POWER-FAIL CHIP DESELECT AND WRITE PROTECTION MICROPROCESSOR POWER-ON RESET (RESET VALID EVEN DURING BATTERY BACK-UP MODE) BATTERY LOW PIN - PROVIDES WARNING OF BATTERY END-OF-LIFE WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage): – M48Z129Y: 4.
2V ≤ VPFD ≤ 4.
5V – M48Z129V: 2.
7V ≤ VPFD ≤ 3.
0V CONVENTIONAL SRAM OPERATION; UNLIMITED WRITE CYCLES 10 YEARS OF DATA RETENTION IN THE ABSENCE OF POWER PIN AND FUNCTION COMPATIBLE WITH JEDEC STANDARD 128Kb x 8 SRAMS SELF CONTAINED BATTERY IN DIP PACKAGE 17 A0-A16 W E G G W RST BL VCC VSS Output Enable Write Enable Reset Output (Open Drain) Battery Low Output (Open Drain) Supply Voltage Ground 32 1 s s s s PMDIP32 (PM) Module s Figure 1.
Logic Diagram s s s VCC 8 DQ0-DQ7 M48Z129Y M48Z129V RST BL Table 1.
Signal Names A0-A16 DQ0-DQ7 E Address Inputs Data Inputs / Outputs Chip Enabl...

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