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参数资料
| 型号： | AK632512W |
| 厂商： | Accutek Microcircuit Corporation |
| 英文描述： | 524,288 x 32 Bit CMOS / BiCMOS Static Random Access Memory |
| 中文描述： | 524288 × 32位的CMOS / BiCMOS工艺静态随机存取存储器 |
| 文件页数： | 1/2页 |
| 文件大小： | 107K |
| 代理商： | AK632512W |
DESCRIPTION
The Accutek AK632512 SRAM Module consists of fast high perfor-
mance SRAMs mounted on a low height, 72 pin SIM or ZIP Board.
The module utilizes four 36 pin 512K x 8 SRAMs in 400 mil SOJ
packagesandfourdecouplingcapacitorsmountedonthefrontside
of a printed circuit board.
TheSRAMsusedhavecommonI/Ofunctionsandsingleoutputen-
ablefunctions. Also,fourseparatechipselect(CE)connectionsare
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.
The Accutek module is designed to have a maximum seated height
of 0.640 inch SIM or 0.555 inch ZIP to provide for the lowest height
offtheboard. EachconformstoJEDEC-standardsizesandpin-out
configurations. Using four pins for module memory density identifi-
cation, PD
0
, PD
1
, PD
2
and PD
3
minimizes interchangeability and
design considerations when changing from one module size to the
other in customer applications.
FEATURES
524,288 x 32 bit organization
JEDEC Standard 72 pin SIM or ZIP format
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 or 0.555 inch ZIP maximum
Power:
720mA Max Active (20 nSEC)
760mA Max Active (15 nSEC)
800mA Max Active (12 nSEC)
200mA Max Standby
TTL-compatible inputs and outputs
Presence Detect, PD0, PD1, PD2 and PD3 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
Upward compatible with 1 Meg x 32 (AK6321024)
Single 5 volt power supply - AK632512W, AK632512Z
Single 3.3 volt power supply - AK632512W/3.3,
AK632512Z/3.3
Operating free air temperature 0
0
to 70
0
C
ELECTRICAL SPECIFICATIONS
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-compatible512Kx8SRAMsfromseveralSRAMmanufacturers.
Accutek
Microcircuit
Corporation
AK632512W / AK632512Z
524,288 x 32 Bit CMOS / BiCMOS
Static Random Access Memory
1
36
37
72
1
36
37
72
72-Pin ZIP
72-Pin SIM
Front View
PIN NOMENCLATURE
A
0
- A
18
Address Inputs
CE
1
- CE
4
Chip Enable
DQ
1
- DQ
32
Data In/Data Out
OE
Output Enable
PD
0
- PD
3
Presence Detect
Vcc
5v Supply
Vss
Ground
WE
Write Enable
MODULE OPTIONS
Leadless SIM: AK632512W
Leaded SIP: AK632512G
Leaded ZIP: AK632512Z
PIN ASSIGNMENT
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
1
NC
19
A1
37
CE4
55
A5
2
NC
20
A8
38
CE3
56
A12
3
PD2
21
A2
39
A17
57
Vcc
4
PD3
22
A9
40
A16
58
A13
5
Vss
23
DQ13
41
OE
59
A6
6
PD0
24
DQ5
42
Vss
60
DQ21
7
PD1
25
DQ14
43
DQ25
61
DQ29
8
DQ1
26
DQ6
44
DQ17
62
DQ22
9
DQ9
27
DQ15
45
DQ26
63
DQ30
10
DQ2
28
DQ7
46
DQ18
64
DQ23
11
DQ10
29
DQ16
47
DQ27
65
DQ31
12
DQ3
30
DQ8
48
DQ19
66
DQ24
13
DQ11
31
Vss
49
DQ27
67
DQ32
14
DQ4
32
WE
50
DQ20
68
Vss
15
DQ12
33
A15
51
A3
69
A18
16
Vcc
34
A14
52
A10
70
NC
17
A0
35
CE2
53
A4
71
NC
18
A7
36
CE1
54
A11
72
NC
PD0
PD1
=
=
Open
Open
PD2
PD3
=
=
Vss
Open
FUNCTIONAL DIAGRAM
A0 - A18
A0 - A18
A0 - A18
A0 - A168
WE
WE
WE
WE
DQ1 - DQ8
DQ1 - DQ8
DQ1 - DQ8
DQ1 - DQ8
OE
OE
OE
OE
CE
*
CE
*
CE
*
CE
*
+
+
+
+
DQ1 - DQ8
DQ9 - DQ16
DQ17 - DQ24
DQ25 - DQ32
+
A0 - A18
19
+
*
*
*
*
+
*
*
*
*
+
+
+
+
WE
OE
CE1
CE2
CE3
CE4
相关PDF资料 |
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|---|---|
| AK632512W-15 | 524,288 x 32 Bit CMOS / BiCMOS Static Random Access Memory |
| AK632512Z | 524,288 x 32 Bit CMOS / BiCMOS Static Random Access Memory |
| AK63264W-72 | 65,536 x 32 Bit CMOS/BiCMOS 72 Pin Format Static Random Access Memory |
| AK6364096D | Automotive Relays; V23134C1052C642 ( Tyco Electronics ) |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AK632512W-12 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x32 SRAM Module |
| AK632512W-15 | 制造商:ACCUTEK 制造商全称:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:524,288 x 32 Bit CMOS / BiCMOS Static Random Access Memory |
| AK632512W-20 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x32 SRAM Module |
| AK632512W-25 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x32 SRAM Module |
| AK632512W-35 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x32 SRAM Module |
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