AK632512AW_09 [ACCUTEK]
Static Random Access Memory; 静态随机存取存储器
| 型号： | AK632512AW_09 |
| 厂家： | 
ACCUTEK MICROCIRCUIT CORPORATION |
| 描述： | Static Random Access Memory |
| 文件： | 总2页 (文件大小：76K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AK632512AW - 64 Pin Version
524,288 x 32 Bit CMOS / BiCMOS
Static Random Access Memory
ACCUTEK
MICROCIRCUIT CORPORATION
DESCRIPTION
Front View
The Accutek AK632512AW SRAM Module consists of fast high per-
formance SRAMs mounted on a low height, 64 pin SIM Board. The
module utilizes four 36 pin 512K x 8 SRAMs in 400 mil SOJ pack-
ages and four decoupling capacitors mounted two on the front side
and two on the back side of a printed circuit board.
33
64
1
32
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 15 nSEC to
35 nSEC in CMOS or BiCMOS technology.
Back View
The Accutek module is designed to have a maximum seated height
of 0.640 inch SIM to provide for the lowest height off the board. The
module conforms to JEDEC-standard size. The Presence Detect
feature has been disabled on this 64 pin module. The customer
must jumper his board to provide density identification. The avail-
able 72 pin module has the Presence Detect feature operational.
32
1
64
33
· Presence Detect, PD0 is open for identifying module density
· Downward compatible with 256K x 32 (AK632256), 128K x 32
(AK632128), 64K x 32 (AK63264) and 32K x 32 (AK63232), 64
pin SIM or ZIP designs
FEATURES
· 524,288 x 32 bit organization
replaces PD1 on Pin #3
· Upward compatible with 1 Meg x 32 (AK6321024)
· Similar to JEDEC standard 64 pin SIM format except that A18
· TTL-compatible inputs and outputs
· Single 5 volt power supply - AK632512AW
· Single 3.3 volt power supply - AK632512AW/3.3
· Operating free air temperature 00 to 700C
· Common I/O, single OE and WE functions with four separate
chip selects (CE)
· Fast access times from 15 nSEC
· Low height, 0.640 inch SIM maximum
ELECTRICAL SPECIFICATIONS
· Power:
Timing diagrams and basic electrical characteristics are those of the
standard 512K x 8 SRAMs used to construct these modules.
Accutek’s module design allows the flexibility of selecting indus-
try-compatible 512K x 8 SRAMs from several SRAM manufacturers.
720mA Max Active (20 nSEC)
760mA Max Active (15 nSEC)
800mA Max Active (12 nSEC)
200mA Max Standby
PIN NOMENCLATURE
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
A0 - A18
WE
+
+
A0 - A18
WE
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
19
A0 - A18
CE1 - CE4
DQ1 - DQ32
OE
Address Inputs
*
*
+
+
+
+
DQ1 - DQ8
DQ1 - DQ8
Chip Enable
Data In/Data Out
Output Enable
Presence Detect
5v Supply
2
PD0
A18
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
DQ4
DQ12
Vcc
A9
CE3
A11
OE
+
+
OE
3
DQ13
DQ5
DQ14
DQ6
DQ15
DQ7
DQ16
DQ8
Vss
A17
A5
CE
4
A16
A12
CE1
5
OE
Vcc
A0 - A18
WE
6
Vss
A13
PD0
*
*
DQ1 - DQ8
7
DQ25
DQ17
DQ26
DQ18
DQ27
DQ19
DQ28
DQ20
A3
A6
DQ9 - DQ16
DQ17 - DQ24
DQ25 - DQ32
Vcc
OE
8
D21
Vss
Ground
9
DQ29
DQ22
DQ30
DQ23
DQ31
DQ24
DQ32
Vss
CE
CE2
CE3
CE4
+
+
+
10
11
12
13
14
15
16
WE
Write Enable
A0 - A18
WE
*
*
WE
DQ1 - DQ8
MODULE OPTIONS
A0
A15
OE
A7
A14
CE
Leadless SIM: AK632512AW
A1
CE2
CE1
A8
A10
A0 - A168
WE
*
*
PD0 = Open
DQ1 - DQ8
OE
CE
ORDERING INFORMATION
MECHANICAL DIMENSIONS
Inches
PART NUMBER CODING INTERPRETATION
5
1
2
3
4
6
7
8
Position
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 = 4 MEG
8192 = 8 MEG
1024 = 1 MEG 16384 = 16 MEG
256 = 256K
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 shown as examples of the most widely used vari-
ations. Contact Accutek if other information is required.
EXAMPLES:
AK632512AW-15
512K x 32, 15 nSEC SRAM Module, SIM Configuration, 64 Pin
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.
5 NEW PASTURE ROAD
NEWBURYPORT, MA 01950-4040
PHONE: 978-465-6200 FAX: 978-462-3396
ACCUTEK
MICROCIRCUIT CORPORATION
Email: sales@accutekmicro.com
Internet: www.accutekmicro.com
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