M48Z30PM datasheet(1/12 Pages) STMICROELECTRONICS

Part #	M48Z30PM

Description	CMOS 32K x 8 ZEROPOWER SRAM

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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Figure 1. Logic Diagram

M48Z30

M48Z30Y

CMOS 32K x 8 ZEROPOWER SRAM

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

PIN and FUNCTION COMPATIBLE with

JEDEC STANDARD 32K x 8 SRAMs

AUTOMATIC POWER-FAIL CHIP DESELECT

and WRITE PROTECTION

CHOICE of TWO WRITE PROTECT

VOLTAGES:

– M48Z30: 4.5V

≤ VPFD ≤ 4.75V

– M48Z30Y: 4.2V

≤ VPFD ≤ 4.50V

BATTERY INTERNALLY ISOLATED UNTIL

POWER IS APPLIED

DESCRIPTION

The M48Z30/30Y 32K x 8 ZEROPOWER® RAM is

a non-volatile 262,144 bit Static RAM organized as

32,768 words by 8 bits. The device combines an

internal lithium battery and a full CMOS SRAM in a

plastic 28 pin DIP Module. The ZEROPOWER

A0 - A14

Address Inputs

DQ0 - DQ7

Data Inputs / Outputs

E

Chip Enable

G

Output Enable

W

Write Enable

VCC

Supply Voltage

VSS

Ground

Table 1. Signal Names

28

1

PMDIP28 (PM)

Module

July 1994

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