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参数资料
| 型号： | AK5321024 |
| 厂商： | Accutek Microcircuit Corporation |
| 英文描述： | 262,144 Word by 32 Bit CMOS Dynamic Random Access Memory |
| 中文描述： | 262,144 Word的32位CMOS动态随机存取存储器 |
| 文件页数： | 1/2页 |
| 文件大小： | 69K |
| 代理商： | AK5321024 |
DESCRIPTION
The Accutek AK532256W high density memory module is a CMOS
dynamic RAM organized in 256K x 32 bit words. The module con-
sists of eight standard 256K x 4 DRAMs in plastic SOJ packages.
The assembly has eight drams mounted on the front side of a
printed circuit board in a 72 pad leadless SIM configuration.
The operation of the AK532256W is identical to eight 256K x 4
DRAMs. Therearefour
CAS
linesandtwo
RAS
lines. Independent
bytecontrolisaccomplishedbyfour
CAS
lines. Eachseperate
CAS
line controls two 256K x 4 Drams to form an 8 bit byte. The bank of
32bitsiscontrolledbythetwoRASlines. Asixteenbitdatapathcan
be produced by connecting DQ
1
to DQ
17
, DQ
2
to DQ
18
and alter-
nately strobing
RAS
0
with RAS
2
.
FEATURES
262,144 x 32 bit organization
72 pin Single In-Line Module
Multiple
CAS
and
RAS
lines allow x16 or x32 bit widths
CAS
-before-
RAS
Refresh,
RAS
-only Refresh or Hidden refresh
Operating free air temperature 0
o
C to 70
o
C
Single 5 Volt Power Supply
512 Refresh Cycles, 8mSEC
Power
2.00 Watt Max Active (60nS)
1.78 Watt Max Active (70 nS)
1.562 Watt Max Active (80 nS)
44 mW Max Standby
Available in Fast Page Mode, EDO and Static Column Mode
versions
Available in leadless SIM or leaded Zip versions
Upward compatible with AK532512, AK5321024, AK5322048,
AK5324096 and AK5328192
ADDITIONAL OPTIONS AVAILABLE
512K x 32 version, AK532512
1 Meg x 32 version, AK5321024
2 Meg x 32 version, AK5322048
4 Meg x 32 version, AK5324096
8 Meg x 32 version, AK5328192
Accutek
Microcircuit
Corporation
AK532256W
262,144 Word by 32 Bit CMOS
Dynamic Random Access Memory
+
+
+
PIN NOMENCLATURE
A
0
- A
8
Address Inputs
DQ
1
- DQ
32
Data In/Data Out
CAS
0
- CAS
3
Column Address Strobe
RAS
0
, RAS
2
Row Address Strobe
WE
Write Enable
PD
1
- PD
4
Presence Detect
Vcc
5v Supply
Vss
Ground
NC
No Connect
MODULE OPTIONS
Leadless SIM: AK532256W
Leaded ZIP: AK532256WZ
PIN ASSIGNMENT
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
1
Vss
19
NC
37
NC
55
DQ12
2
D1
20
DQ5
38
NC
56
DQ28
3
DQ17
21
DQ21
39
Vss
57
DQ13
4
DQ2
22
DQ6
40
CAS0
58
DQ29
5
DQ18
23
DQ22
41
CAS2
59
Vcc
6
DQ3
24
DQ7
42
CAS3
60
DQ30
7
DQ19
25
DQ23
43
CAS1
61
DQ14
8
DQ4
26
DQ8
44
RAS0
62
DQ31
9
DQ20
27
DQ24
45
NC
63
DQ15
10
Vcc
28
A7
46
NC
64
DQ32
11
NC
29
NC
47
WE
65
DQ16
12
A0
30
Vcc
48
NC
66
NC
13
A1
31
A8
49
DQ9
67
PD1
14
A2
32
NC
50
DQ25
68
PD2
15
A3
33
NC
51
DQ10
69
PD3
16
A4
34
RAS2
52
DQ26
70
PD4
17
A5
35
NC
53
DQ11
71
NC
18
A6
36
NC
54
DQ27
72
Vss
Presence Detect -
-60
-70
-80
PD1
Vss
Vss
Vss
PD2
NC
NC
NC
PD3
NC
Vss
NC
PD4
NC
NC
Vss
相关PDF资料 |
PDF描述 |
|---|---|
| AK5322048 | 262,144 Word by 32 Bit CMOS Dynamic Random Access Memory |
| AK5322048BW | 1,048,576 Word by 36 Bit CMOS Dynamic Random Access Memory |
| AK5361024BW | 1,048,576 Word by 36 Bit CMOS Dynamic Random Access Memory |
| AK5362048BW | 1,048,576 Word by 36 Bit CMOS Dynamic Random Access Memory |
| AK5322048W | 2,097,152 Word by 32 Bit CMOS Dynamic Random Access Memory |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AK5321024BW | 制造商:ACCUTEK 制造商全称:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:1,048,576 Word by 36 Bit CMOS Dynamic Random Access Memory |
| AK5321024BW_09 | 制造商:ACCUTEK 制造商全称:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:Dynamic Random Access Memory |
| AK5321024BZ | 制造商:ACCUTEK 制造商全称:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:1,048,576 Word by 32 Bit CMOS Dynamic Random Access Memory |
| AK5321024D | 制造商:ACCUTEK 制造商全称:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory |
| AK5321024G | 制造商:ACCUTEK 制造商全称:ACCUTEK MICROCIRCUIT CORPORATION 功能描述:65,536 x 32 Bit CMOS/BiCMOS Static Random Access Memory |
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