ak5321024w Accutek Microcircuit Corporation, ak5321024w Datasheet
ak5321024w
Manufacturer Part Number
ak5321024w
Description
1,048,576 Word By 32 Bit Cmos Dynamic Random Access Memory
Manufacturer
Accutek Microcircuit Corporation
Datasheet
1.AK5321024W.pdf
(2 pages)
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
Related parts for ak5321024w
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 ...