3/16

M48Z08, M48Z18

SUMMARY DESCRIPTION

non-volatile static RAM which is pin and functional

compatible with the DS1225.

The monolithic chip is available in two special

packages to provide a highly integrated battery

backed-up memory solution.

The M48Z08/18 is a non-volatile pin and function

equivalent to any JEDEC standard 8K x 8 SRAM.

It also easily fits into many ROM, EPROM, and

EEPROM sockets, providing the non-volatility of

PROMs without any requirement for special write

timing or limitations on the number of writes that

can be performed.

The 28-pin, 600mil DIP CAPHAT™ houses the

M48Z08/18 silicon with a long life lithium button

cell in a single package.

Figure 2. Logic Diagram

Table 1. Signal Names

Figure 3. DIP Connections

AI01022

13

A0-A12

W

DQ0-DQ7

VCC

M48Z08

M48Z18

G

VSS

8

E

A0-A12

Address Inputs

DQ0-DQ7

Data Inputs / Outputs

E

Chip Enable

G

Output Enable

W

WRITE Enable

Supply Voltage

Ground

NC

Not Connected Internally

A1

A0

DQ0

A7

A4

A3

A2

A6

A5

NC

A10

A8

A9

DQ7

W

A11

G

E

DQ5

DQ1

DQ2

DQ3

VSS

DQ4

DQ6

A12

NC

VCC

AI01183

M48Z08

M48Z18

8

1

2

3

4

5

6

7

9

10

11

12

13

14

16

15

28

27

26

25

24

23

22

21

20

19

18

17