M48Z02, M48Z12

Summary

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1

Summary

functional compatible with the DS1220.

A special 24-pin, 600mil DIP CAPHAT™ package houses the M48Z02/12 silicon with a long

life lithium button cell to form a highly integrated battery backed-up memory solution.

The M48Z02/12 button cell has sufficient capacity and storage life to maintain data

functionality for an accumulated time period of at least 10 years in the absence of power

over commercial operating temperature range.

The M48Z02/12 is a non-volatile pin and function equivalent to any JEDEC standard 2K 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.

Figure 1.

Logic diagram

Table 1.

Signal names

A0-A10

Address inputs

DQ0-DQ7

Data inputs / outputs

E

Chip enable

G

Output enable

W

WRITE enable

Supply voltage

Ground

AI01186

11

A0-A10

W

DQ0-DQ7

VCC

M48Z02

M48Z12

G

VSS

8

E