M48Z02-200PC1(2003) Ver la hoja de datos (PDF) - STMicroelectronics
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| M48Z02-200PC1 Datasheet PDF : 0 Pages | |||
M48Z02, M48Z12
SUMMARY DESCRIPTION
The M48Z02/12 ZEROPOWER® RAM is a 2K x 8
non-volatile static RAM which is pin and functional
compatible with the DS1220.
A special 24-pin, 600mil DIP CAPHAT™ package
houses the M48Z02/12 silicon with a long life lithi-
um 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 2. Logic Diagram
VCC
11
A0-A10
8
DQ0-DQ7
W
M48Z02
M48Z12
E
G
Table 1. Signal Names
A0-A10
Address Inputs
DQ0-DQ7 Data Inputs / Outputs
E
Chip Enable
G
Output Enable
W
WRITE Enable
VCC
Supply Voltage
VSS
Ground
VSS
AI01186
Figure 3. DIP Connections
A7 1
A6 2
24 VCC
23 A8
A5 3
22 A9
A4 4
21 W
A3 5
20 G
A2 6 M48Z02 19 A10
A1 7 M48Z12 18 E
A0 8
17 DQ7
DQ0 9
16 DQ6
DQ1 10
15 DQ5
DQ2 11
14 DQ4
VSS 12
13 DQ3
AI01187
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