Austin Semiconductor, Inc.
512K x 32 SRAM
PIN ASSIGNMENT
SRAM MEMORY ARRAY
AVAILABLE AS MILITARY
SPECIFICATIONS
•
•
•
•
•
•
•
•
•
AS8S512K32
& AS8S512K32A
SRAM
(Top View)
68 Lead CQFP (Q, Q1 & Q2)
Military SMD Pinout Option
9
8
7
6
5
4
3
2
1
68
67
66
65
64
63
62
61
SMD 5962-94611 (Military Pinout)
MIL-STD-883
Operation with single 5V supply
High speed: 12, 15, 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
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
FEATURES
•
Operating Temperature Ranges
Military (-55
o
C to +125
o
C)
Industrial (-40
o
C to +85
o
C)
•
Timing
12ns
15ns
17ns
20ns
25ns
35ns
45ns
55ns
• Package
Ceramic Quad Flatpack
Ceramic Quad Flatpack
Ceramic Quad Flatpack
Pin Grid Array
• Low Power Data Retention Mode
• Pinout
Military
Commercial
*(available with Q package only)
XT
IT
68 Lead CQFP
Commercial Pinout Option (Q & Q1 with A)
I/O 16
A18
A17
CS4\
CS3\
CS2\
CS1\
NC
Vcc
NC
NC
OE\
WE\
A16
A15
A14
I/O 15
-12
-15
-17
-20
-25
-35
-45
-55
Q
Q1
Q2
P
L
(no indicator)
A*
CS
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.
CS
AS8S512K32 & AS8S512K32A
Rev. 6.0 6/05
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
1
I/O 31
A6
A5
A4
A3
A2
A1
A0
Vcc
A13
A12
A11
A10
A9
A8
A7
I/O 0
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
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
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
9
8
7
6
5
4
3
2
1
68
67
66
65
64
63
62
61
Vcc
A11
A12
A13
A14
A15
A16
CS1\
OE\
CS2\
A17
WE2\
WE3\
WE4\
A18
NC
NC
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
OPTIONS
MARKINGS
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
NC
A0
A1
A2
A3
A4
A5
CS3\
GND
CS4\
WE1\
A6
A7
A8
A9
A10
Vcc
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
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
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
66 Lead PGA (P)
Military SMD Pinout
CS
\
CS
MICROSS [ MICROSS COMPONENTS ]
