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DESC SMD# 5962鈥?3187 Released (P2,P3,P6,P7)
CIRCUIT TECHNOLOGY
www.aeroflex.com
General Description
The ACT鈥揝128K32 is a High
Speed 4 megabit CMOS SRAM
Multichip
Module
(MCM)
designed for full temperature
range, military, space, or high
reliability mass memory and
fast cache applications.
The MCM can be organized
as a 128K x 32 bits, 256K x 16
bits or 512k x 8 bits device and
is input and output TTL
compatible. Writing is executed
when the write enable (WE)
and chip enable (CE) inputs are
low. Reading is accomplished
when WE is high and CE and
output enable (OE) are both
low. Access time grades of
17ns, 20ns, 25ns, 35ns, 45ns
and 55ns maximum are
standard.
The +5 Volt power supply
version is standard and the
+3.3 Volt low power model is
available (See ACT-S128K32V
data sheet).
The products are designed for
operation over the temperature
range of -55擄C to +125擄C and
screened under the full military
environment. DESC Standard
Military Drawing (SMD) part
numbers are released and
available.
The
ACT-S128K32
is
manufactured in Aeroflex鈥檚
80,000ft
2
MIL-PRF-38534
certified facility in Plainview,
N.Y.
5962鈥?5595 Released (F1,F2,F18)
Block Diagram 鈥?PGA Type Package(P2,P7) & CQFP(F2,F18)
Pin Description
WE
1
CE
1
WE
2
CE
2
WE
3
CE
3
WE
4
CE
4
I/O
0-31
A
0
鈥?A
16
OE
128Kx8
128Kx8
128Kx8
128Kx8
A
0鈥?6
WE
1鈥?
CE
1鈥?
OE
V
cc
8
I/O
0-7
8
I/O
8-15
8
I/O
16-23
8
I/O
24-31
GND
NC
Data I/O
Address Inputs
Write Enables
Chip Enables
Output Enable
Power Supply
Ground
Not Connected
Block Diagram 鈥?CQFP(F1)
Pin Description
CE
1
WE
OE
A
0
鈥?A
16
128Kx8
128Kx8
128Kx8
128Kx8
CE
2
CE
3
CE
4
I/O
0-31
A
0鈥?6
WE
CE
1鈥?
OE
V
cc
8
I/O
0-7
8
I/O
8-15
8
I/O
16-23
8
I/O
24-31
GND
NC
Data I/O
Address Inputs
Write Enable
Chip Enables
Output Enable
Power Supply
Ground
Not Connected
eroflex Circuit Technology - Advanced Multichip Modules 漏 SCD1659 REV E 5/21/01