M48Z129V datasheet(4/16 Pages) STMICROELECTRONICS

4 / 16 page

M48Z129Y*, M48Z129V

4/16

SUMMARY DESCRIPTION

The M48Z129Y/V ZEROPOWER® SRAM is a

1,048,576 bit non-volatile static RAM organized as

131,072 words by 8 bits. The device combines an

internal lithium battery, a CMOS SRAM and a con-

trol circuit in a plastic 32-pin DIP Module. The

M48Z129Y/V directly replaces industry standard

128K x 8 SRAM. It also provides the non-volatility

of FLASH without any requirement for special

WRITE timing or limitations on the number of

WRITEs that can be performed.

Figure 2. Logic Diagram

Table 1. Signal Names

Figure 3. DIP Connections

AI02309

A0-A16

DQ0-DQ7

VCC

M48Z129Y

M48Z129V

VSS

RST

A0-A16

Address Inputs

DQ0-DQ7

Data Inputs / Outputs

Chip Enable

Output Enable

WRITE Enable

RST

Reset Output (Open Drain)

Battery Low Output (Open Drain)

VCC

Supply Voltage

VSS

Ground

DQ0

A13

A10

DQ7

A15

A11

DQ5

DQ1

DQ2

DQ3

VSS

DQ4

DQ6

A16

RST

VCC

AI02310

M48Z129Y

M48Z129V

A12

A14

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