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M48Z02 Datasheet(PDF) 1 Page - STMicroelectronics

Part # M48Z02
Description  16 Kbit 2Kb x 8 ZEROPOWER SRAM
PDF  12 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M48Z02 Datasheet(HTML) 1 Page - STMicroelectronics

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M48Z02
M48Z12
16 Kbit (2Kb x 8) ZEROPOWER
® SRAM
May 1999
1/12
INTEGRATED ULTRA LOW POWER SRAM,
POWER-FAIL CONTROL CIRCUIT and
BATTERY
UNLIMITED WRITE CYCLES
READ CYCLE TIME EQUALS WRITE CYCLE
TIME
AUTOMATIC POWER-FAIL CHIP DESELECT and
WRITE PROTECTION
WRITE PROTECT VOLTAGES
(VPFD = Power-fail Deselect Voltage):
– M48Z02: 4.50V
≤ VPFD ≤ 4.75V
– M48Z12: 4.20V
≤ VPFD ≤ 4.50V
SELF-CONTAINED BATTERY in the CAPHAT
DIP PACKAGE
PIN and FUNCTION COMPATIBLE with
JEDEC STANDARD 2K x 8 SRAMs
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 lith-
ium 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 and clock function-
ality for an accumulated time period of at least 10
years in the absence of power over the operating
temperature range.
AI01186
11
A0-A10
W
DQ0-DQ7
VCC
M48Z02
M48Z12
G
VSS
8
E
Figure 1. Logic Diagram
A0-A10
Address Inputs
DQ0-DQ7
Data Inputs / Outputs
E
Chip Enable
G
Output Enable
W
Write Enable
VCC
Supply Voltage
VSS
Ground
Table 1. Signal Names
24
1
PCDIP24 (PC)
Battery CAPHAT


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