M48Z129Y-85PM1TR 查看數據表（PDF） - STMicroelectronics

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M48Z129Y-85PM1TR

5.0V OR 3.3V, 1 Mbit (128 Kb x 8) ZEROPOWER® SRAM

STMicroelectronics 

M48Z129Y*

M48Z129V

5.0V OR 3.3V, 1 Mbit (128 Kb x 8) ZEROPOWER® SRAM

FEATURES SUMMARY

■ INTEGRATED, ULTRA 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

■ MICROPROCESSOR POWER-ON RESET

(RESET VALID EVEN DURING BATTERY

BACK-UP MODE)

■ BATTERY LOW PIN - PROVIDES WARNING

OF BATTERY END-OF-LIFE

■ AUTOMATIC POWER-FAIL CHIP

DESELECT AND WRITE PROTECTION

■ WRITE PROTECT VOLTAGES

(VPFD = Power-fail Deselect Voltage):

– M48Z129Y: VCC = 4.5 to 5.5V

4.2V ≤ VPFD ≤ 4.5V

– M48Z129V: VCC = 3.0 to 3.6V

2.7V ≤ VPFD ≤ 3.0V

■ SELF-CONTAINED BATTERY IN THE

CAPHAT™ DIP PACKAGE

■ PIN AND FUNCTION COMPATIBLE WITH

JEDEC STANDARD 128K x 8 SRAMs

Figure 1. 32-pin PMDIP Module

32

1

PMDIP32 (PM)

Module

* Contact local ST sales office for availability.

March 2005

1/16

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