AK632128AW-30 [ACCUTEK]
SRAM;
| 型号： | AK632128AW-30 |
| 厂家： | 
ACCUTEK MICROCIRCUIT CORPORATION |
| 描述： | SRAM 静态存储器 |
| 文件： | 总2页 (文件大小：96K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Accutek
Microcircuit
Corporation
AK632128AW / AK632128AZ
131,072 x 32 Bit CMOS/BiCMOS
Static Random Access Memory
DESCRIPTION
Top View
64-Pin SIMM
The Accutek AK632128W SRAM Module consists of fast high per-
formance SRAMs mounted on a low height, 64 pin SIM or ZIP PCB.
The module utilizes four 32 pin 128K x 8 SRAMs in 300 mil SOJ
packages and four decoupling capacitors mounted on the front side
of a printed circuit board.
1
32 33
64
The SRAMs used have common I/O functions and single output en-
able functions. Also, four separate chip select (CE) connections are
used to independently enable the four bytes. The modules can be
supplied in a variety of access time values from 7nSEC to 35nSEC
in CMOS or BiCMOS technology.
64-Pin ZIP
The Accutek module is designed to have a maximum seated height
of 0.600 inch SIM or 0.520 inch ZIP to provide for the lowest height
off the board. Each conforms to JEDEC-standard sizes and pin-out
configurations. Using two pins for module denisty identification,
PD0 and PD1, minimizes interchangeability and design consider-
ations when changing from one module size to the other in cus-
tomer applications.
32
33
64
1
· Common I/O, single OE functions with four separate chip se-
lects (CE)
· Presence Detect PD0 and PD1 for identifying module density
· Downward compatible with 32K x 32 (AK63232) and 64K x 32
AK63264)
FEATURES
· Upward compatible with 256K x 32 (AK632256), 512K x 32
(AK632512) and 1 Meg x 32 (AK6321024)
· 131,072 x 32 bit organization
· Operating free air temperature 00 to 700C
· JEDEC Standard 64 pin SIM or ZIP format
· Access times as fast as 7nSEC
ELECTRICAL SPECIFICATIONS
· TTL compatible inputs and outputs
Timing diagrams and basic electrical characteristics are those of
the standard 128K x 8 SRAMs used to construct these modules.
Accutek’s module design allows the flexibility of selecting indus-
try-compatible 128K x 8 SRAMs from at least seven semiconductor
manufacturers.
· Very low profile, 0.600 inch MAX seated height SIM Version
· Very low profile, 0.520 inch MAX seated height ZIP Version
· Single +5 Volt (10%) power supply
PIN NOMENCLATURE
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
PIN #
1
SYMBOL
Vss
PIN #
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
SYMBOL
A2
PIN #
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
SYMBOL
CE4
PIN #
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SYMBOL
A4
A0 - A16
CE1 - CE4
DQ1 - DQ32
OE
Address Inputs
A0 - A16
WE
+
+
A0 - A16
WE
17
Chip Enable
Data In/Data Out
Output Enable
Presence Detect
5v Supply
*
*
2
PD0
PD1
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
DQ4
DQ12
Vcc
A9
CE3
A11
+
+
+
+
DQ1 - DQ8
DQ1 - DQ8
DQ1 - DQ8
DQ1 - DQ8
DQ1 - DQ8
OE
3
DQ13
DQ5
DQ14
DQ6
DQ15
DQ7
DQ16
DQ8
Vss
NC
A5
+
+
OE
4
A16
A12
CE
CE1
5
OE
Vcc
PD0 - PD1
Vcc
6
Vss
A13
A0 - A16
WE
*
*
7
DQ25
DQ17
DQ26
DQ18
DQ27
DQ19
DQ28
DQ20
A3
A6
DQ9 - DQ16
DQ17 - DQ24
DQ25 - DQ32
8
DQ21
DQ29
DQ22
DQ30
DQ23
DQ31
DQ24
DQ32
Vss
OE
Vss
Ground
9
CE
WE
Write Enable
No Connect
CE2
CE3
CE4
10
11
12
13
14
15
16
+
+
+
A0 - A16
WE
NC
WE
*
*
A0
A15
OE
MODULE OPTIONS
A7
A14
CE
A1
CE2
CE1
Leadless SIM: AK632128AW
Leaded ZIP: AK632128AZ
A8
A10
A0 - A16
WE
*
*
PD0 = Open
PD1 = Open
OE
CE
ORDERING INFORMATION
MECHANICAL DIMENSIONS
PART NUMBER CODING INTERPRETATION
5
Inches
1
2
3
4
6
7
8
Position
Top View ZIP
1
Product
AK
= Accutek Memory
2
Type
4 = Dynamic RAM
5 = CMOS Dynamic RAM
6 = Static RAM
3
Organization/Word Width
1 = by 1 16 = by 16
4 = by 4 32 = by 32
8 = by 8 36 = by 36
9 = by 9
4
Size/Bits Depth
64 = 64K 4096
256 = 256K 8192
1024 = 1 MEG 16384
=
=
=
4 MEG
8 MEG
16 MEG
5
Package Type
G = Single In-Line Package (SIP)
S = Single In-Line Module (SIM)
D = Dual In-Line Package (DIP)
W = .050 inch Pitch Edge Connect
Z = Zig-Zag In-Line Package (ZIP)
6
Special Designation
P = Page Mode
N = Nibble Mode
K = Static Column Mode
W = Write Per Bit Mode
V = Video Ram
7
Separator
-
= Commercial 00C to +700C
M = Military Equivalent Screened
(-550C to +1250C)
I
= Industrial Temperature Tested
(-450C to +850C)
X = Burned In
8
Speed (first two significant digits)
SRAMS
DRAMS
50
60
70
80
=
=
=
=
50 nS
60 nS
70 nS
80 nS
8
10
12
15
=
=
=
=
8 nS
10 nS
12 nS
15 nS
The numbers and coding on this page do not include all variations
available but are show as examples of the most widely used variations.
Contact Accutek if other information is required.
EXAMPLES:
AK632128AW-10
128K x 32, 15 nSEC SRAM Module, SIM Configuration
AK632128AZ-12
128K x 32, 12 nSEC SRAM Module, ZIP Configuration
ACCUTEK MICROCIRCUIT CORPORATION
BUSINESS CENTER at NEWBURYPORT
2 NEW PASTURE ROAD, SUITE 1
NEWBURYPORT, MA 01950-4054
VOICE: 978-465-6200 FAX: 978-462-3396
Email: accutek@seacoast.com
Accutek Reserves the right to make changes in specifications at any
time and without notice. Accutek does not assume any responsibility
for the use of any circuitry described; no circuit patent licenses are im-
plied. Preliminary data sheets contain minimum and maximum limits
based upon design objectives, which are subject to change upon full
characterization over the specific operating conditions.
Internet: www.accutekmicro.com
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