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M48Z2M1V

5 V or 3.3 V, 16 Mbit (2 Mb x 8) ZEROPOWER® SRAM

STMicroelectronics 

M48Z2M1Y, M48Z2M1V

1

Description

Description

The M48Z2M1Y/V ZEROPOWER® RAM is a non-volatile 16,777,216-bit, static RAM

organized as 2,097,152 words by 8 bits. The device combines two internal lithium batteries,

CMOS SRAMs and a control circuit in a plastic 36-pin DIP, long module.

The ZEROPOWER RAM replaces industry standard SRAMs. It provides the non-volatility of

PROMs without any requirement for special WRITE timing or limitations on the number of

WRITEs that can be performed.

Figure 1. Logic diagram

VCC

t(s) 21

A0-A20

8

DQ0-DQ7

duc W

M48Z2M1Y

M48Z2M1V

ro E

P G

olete VSS

bs Table 1. Signal names

- O A0-A20

Address inputs

t(s) DQ0-DQ7

Data inputs / outputs

c E

Chip enable

du G

Output enable

roW

WRITE enable

PVCC

Supply voltage

lete VSS

Ground

Obso NC

Not connected internally

AI02048

Doc ID 5135 Rev 6

5/20

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