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M68AW128M Datasheet(PDF) 4 Page - STMicroelectronics

Part No. M68AW128M
Description  2 Mbit (128K x16) 3.0V Asynchronous SRAM
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M68AW128M Datasheet(HTML) 4 Page - STMicroelectronics

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SUMMARY DESCRIPTION
The M68AW128M is a 2 Mbit (2,097,152 bit)
CMOS SRAM, organized as 131,072 words by 16
bits. The device features fully static operation re-
quiring no external clocks or timing strobes, with
equal address access and cycle times. It requires
a single 2.7 to 3.6V supply. This device has an au-
tomatic power-down feature, reducing the power
consumption by over 99% when deselected.
The M68AW128M is available in TFBGA48
(0.75 mm pitch) and in TSOP44 Type II packages.
In addition to the standard version, the packages
are also available in Lead-free version, in compli-
ance with JEDEC Std J-STD-020B, the ST ECO-
PACK 7191395 Specification, and the RoHS
(Restriction of Hazardous Substances) directive.
All packages are compliant with Lead-free solder-
ing processes.
Figure 2. Logic Diagram
Table 1. Signal Names
AI04835b
17
A0-A16
W
DQ0-DQ15
VCC
M68AW128M
G
16
E
UB
LB
VSS
A0-A16
Address Inputs
DQ0-DQ15
Data Input/Output
E
Chip Enable
G
Output Enable
W
Write Enable
UB
Upper Byte Enable Input
LB
Lower Byte Enable Input
VCC
Supply Voltage
VSS
Ground
NC
Not Connected Internally
DU
Don’t Use as Internally Connected


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