ak5321024w Accutek Microcircuit Corporation, ak5321024w Datasheet

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ak5321024w

Manufacturer Part Number
ak5321024w
Description
1,048,576 Word By 32 Bit Cmos Dynamic Random Access Memory
Manufacturer
Accutek Microcircuit Corporation
Datasheet
The Accutek AK5321024W high density memory module is a
CMOS Dynamic RAM organized in 1024K x 32 bit words. The
module consists of eight standard 1 Meg x 4 DRAMs in plastic SOJ
packages. The assembly has eight drams mounted on the front
surface of a printed circuit board with a low profile height of only
0.875" in a 72 pin leadless SIM configuration. This configuration
allows socket-mounting of large quantities of memory in applica-
tions where high density and ease of inserting additional memory
are important.
The operation of the AK5321024W is identical to eight 1 Meg x 4
DRAMs. There are four CAS lines and two RAS lines. Independent
byte control is accomplished by four CAS lines. Each separate CAS
line controls two of the 1 Meg x 4 DRAMs to form an 8 bit byte. The
bank of 32 bits is controlled by the two RAS lines. A sixteen bit data
path can be produced by connecting DQ
etc. and alternately strobing RAS
· 1,048,576 x 32 bit organization
· Low profile board height of 0.875 inch
· 72 pad Single In-Line Module
· Multiple CAS and RAS lines allow x16 or x32 bit widths
· Power
· CAS-before-RAS, RAS-only or hidden refresh
· Single 5 Volt Power Supply
· 1024 Refresh Cycles, 16 mSEC
PIN NOMENCLATURE
MODULE OPTIONS
DESCRIPTION
FEATURES
A
DQ
CAS
RAS
WE
PD
Vcc
Vss
NC
Leadless SIM: AK5321024W
Leaded ZIP: AK5321024Z
0
5.28 Watt Max Active (60nS)
4.40 Watt Max Active (70 nS)
44 mW Max Standby
- A
1
0
0
0
- PD
- DQ
9
- CAS
& RAS
MICROCIRCUIT CORPORATION
ACCUTEK
4
31
3
2
Address Inputs
Data In/Data Out
Column Address Strobe
Row Address Strobe
Write Enable
Presence Detect
5v Supply
Ground
No Connect
0
with RAS
0
to DQ
2
.
PIN ASSIGNMENT
Pin #
16
10
11
12
13
14
15
16
17
18
Presence Detect
1
2
3
4
5
6
7
8
9
PD1
PD2
PD3
PD4
, DQ
1
to DQ
Symbol
DQ16
DQ17
DQ18
DQ19
DQ0
DQ1
DQ2
DQ3
Vss
Vcc
Vss
Vss
NC
A0
A1
A2
A3
A4
A5
A6
-60
NC
NC
17
,
Vss
Vss
Vss
-70
NC
Pin #
· Available in Fast Page Mode and EDO
· Available in leadless SIM or leaded ZIP versions
· Downward compatible with AK532512 and AK532256
· Upward compatible with AK5322048, AK5324096 and
· Operating free air temperature 0
· 256K x 32 version, AK532256
· 512K x 32 version, AK532512
· 2 Meg x 32 version, AK5322048
· 4 Meg x 32 version, AK5324096
· 8 Meg x 32 version, AK5328192
ADDITIONAL OPTIONS AVAILABLE
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
AK5328192
+
1
Dynamic Random Access Memory
Symbol
DQ20
DQ21
DQ22
DQ23
RAS2
DQ4
DQ5
DQ6
DQ7
Vcc
NC
NC
NC
NC
NC
A7
A8
A9
1,048,576 Word by 32 Bit CMOS
Pin #
37
38
39
40
41
42
43
44
45
46
47
48
46
50
51
52
53
54
Symbol
CAS0
CAS2
CAS3
CAS1
RAS0
DQ24
DQ25
DQ10
DQ26
DQ8
DQ9
Vss
WE
NC
NC
NC
NC
NC
0
C to 70
0
AK5321024W
C
Pin #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
Symbol
DQ11
DQ27
DQ12
DQ28
DQ29
DQ13
DQ30
DQ14
DQ31
DQ15
PD1
PD2
PD3
PD4
Vcc
Vss
NC
NC
+
72

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ak5321024w Summary of contents

Page 1

... The operation of the AK5321024W is identical to eight 1 Meg x 4 DRAMs. There are four CAS lines and two RAS lines. Independent byte control is accomplished by four CAS lines. Each separate CAS line controls two of the 1 Meg x 4 DRAMs to form an 8 bit byte ...

Page 2

FUNCTIONAL DIAGRAM MECHANICAL DIMENSIONS 0.875" MAX 0.425" 0.375" 0.250" ACCUTEK 5 NEW PASTURE ROAD NEWBURYPORT, MA 01950-4040 PHONE: 978-465-6200 Email: MICROCIRCUIT CORPORATION Internet: www.accutekmicro.com 4.250" 3.985" 0.080" Accutek reserves the right to make changes ...

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