Datasheet

M48Z08, M48Z18 Description
Doc ID 2424 Rev 8 5/20
1 Description
The M48Z08/18 ZEROPOWER
®
RAM is an 8 K x 8 non-volatile static RAM which is pin and
function compatible with the DS1225.
The monolithic chip provides a highly integrated battery-backed memory solution.
The M48Z08/18 is a non-volatile pin and function equivalent to any JEDEC standard 8 K 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, 600 mil DIP CAPHAT
™
houses the M48Z08/18 silicon with a long-life lithium
button cell in a single package.
Figure 1. Logic diagram
Table 1. Signal names
A0-A12 Address inputs
DQ0-DQ7 Data inputs / outputs
E
Chip enable
G Output enable
W WRITE enable
V
CC
Supply voltage
V
SS
Ground
NC Not connected internally
AI01022
13
A0-A12
W
DQ0-DQ7
V
CC
M48Z08
M48Z18
G
V
SS
8
E