SRAM
AS8S512K32
& AS8S512K32A
Austin Semiconductor, Inc.
AS8S512K32 & AS8S512K32A
Rev. 3.1 12/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
1
CS
CS
CS
CS
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GENERAL DESCRIPTION
The Austin Semiconductor, Inc. AS8S512K32 and
AS8S512K32A are 16 Megabit CMOS SRAM Modules organized as
512Kx32 bits. These devices achieve high speed access, low power
consumption and high reliability by employing advanced CMOS
memory technology.
This military temperature grade product is ideally suited for
military and space applications.
FEATURES
• Operation with single 5V supply
• High speed: 17, 20, 25 and 35ns
• Built in decoupling caps for low noise
• Organized as 512Kx32 , byte selectable
• Low power CMOS
• TTL Compatible Inputs and Outputs
• Future offerings
3.3V Power Supply
15 ns Ultra High Speed
OPTIONS MARKINGS
• Operating Temperature Ranges
Military (-55
o
C to +125
o
C) XT
Industrial (-40
o
C to +85
o
C) IT
• Timing
17ns -17
20ns -20
25ns -25
35ns -35
45ns -45
55ns -55
• Package
Ceramic Quad Flatpack Q No.702
Pin Grid Array P No.904
• Low Power Data Retention Mode L
• Pinout
Military (no indicator)
Commercial A
PIN ASSIGNMENT
(Top View)
AVAILABLE AS MILITARY
SPECIFICATIONS
• SMD 5962-94611 (Military Pinout)
• MIL-STD-883
68 Lead CQFP (Q)
Military SMD Pinout Option
512K x 32 SRAM
SRAM MEMORY ARRAY
For more products and information
please visit our web site at
www.austinsemiconductor.com
68 Lead CQFP
Commercial Pinout Option (A)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
I/O17
I/O18
I/O19
Vss
I/O20
I/O21
I/O22
I/O23
Vcc
I/O24
I/O25
I/O26
I/O27
Vss
I/O28
I/O29
I/O30
I/O 14
I/O 13
I/O 12
Vss
I/O 11
I/O 10
I/O 9
I/O 8
Vcc
I/O 7
I/O 6
I/O 5
I/O 4
Vss
I/O 3
I/O 2
I/O 1
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
I/O 31
A6 A5 A4 A3 A2 A1 A0
Vcc A13 A12 A11 A10
A9 A8 A7
I/O 0
I/O 16 A18 A17 CS4\ CS3\ CS2\ CS1\ NC Vcc NC NC OE\ WE\ A16 A15 A14 I/O 15
9 8 7 6 5 4 3 2 1
68 67 66 65 64 63 62 61
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
GND
I/O 8
I/O 9
I/O 10
I/O 11
I/O 12
I/O 13
I/O 14
I/O 15
I/O 16
I/O 17
I/O 18
I/O 19
I/O 20
I/O 21
I/O 22
I/O 23
GND
I/O 24
I/O 25
I/O 26
I/O 27
I/O 28
I/O 29
I/O 30
I/O 31
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
Vcc A11 A12 A13 A14 A15 A16 CS1\
OE\
CS2\
A17
WE2\ WE3\ WE4\
A18
NC NC
NC A0 A1 A2 A3 A4 A5 CS3\ GND CS4\ WE1\ A6 A7 A8 A9 A10 Vcc
9 8 7 6 5 4 3 2 1
68 67 66 65 64 63 62 61
66 Lead PGA (P)
Military SMD Pinout