ak5322048w Accutek Microcircuit Corporation, ak5322048w Datasheet

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ak5322048w

Manufacturer Part Number
ak5322048w
Description
2,097,152 Word By 32 Bit Cmos Accutek Dynamic Random Access Memory
Manufacturer
Accutek Microcircuit Corporation
Datasheet
The Accutek AK53220482W high density memory module is a
CMOS dynamic RAM organized in 2048 x 32 bit words. The module
consists of sixteen standard 1 Meg x 4 DRAMs in plastic SOJ pack-
ages. The assembly has eight drams mounted on each side of a
printed circuit board in a 72 pad leadless SIM configuration.
This configuration allows socket-mounting of large quantities of
memory in applications where high density and ease of inserting ad-
ditional memory are important.
The operation of the AK5322048 is identical to sixteen 1Meg x 4
Drams. There are four CAS lines and four RAS lines. On each bank
of 1Meg x 32, independent byte control is accomplished by the four
CAS lines, where each seperate CAS line controls two 1Meg x 4
Drams. Two banks of 32 bits are controlled by the two pairs of RAS
lines. A sixteen bit data path can be produced by connecting DQ
DQ
RAS
· 2,097,152 x 32 bit organization
· 72 pad Single In-Line Module
· Multiple CAS and RAS lines allow x16 or x32 bit widths
· CAS-before-RAS, RAS-only or hidden refresh
· Operating free air temperature 0
· Single 5 Volt Power Supply
· 2048 Refresh Cycles
· Available in Fast Page Mode EDO versions
DQ
A
CAS
RAS
WE
PD
Vcc
Vss
NC
Leadless SIM: AK5322048W
Leaded ZIP: AK5322048Z
DESCRIPTION
FEATURES
PIN NOMENCLATURE
MODULE OPTIONS
0
17
- A
1
0
2
, DQ
0
0
- PD
- DQ
with RAS
9
- CAS
- RAS
MICROCIRCUIT CORPORATION
ACCUTEK
2
4
31
to DQ
3
3
3
.
18
Data In/Data Out
Address Inputs
Column Address Strobe
Row Address Strobe
Write Enable
Presence Detect
5V Supply
Ground
No Connect
, and alternately strobing RAS
o
C to 70
o
C
Presence Detect -1 Meg x 32
PIN ASSIGNMENT
Pin #
0
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
with RAS
PD1
PD2
PD3
PD4
Symbol
DQ16
DQ17
DQ18
DQ19
DQ0
DQ1
DQ2
DQ3
1
Vss
Vcc
NC
Vss
Vss
A0
A1
A2
A3
A4
A5
A6
-60
NC
NC
and
1
to
Vss
Vss
Vss
-70
NC
· Power
· Available in leadless SIM or leaded Zip versions
· Downward compatible with AK5321024, AK532512 and
· Upward compatible with AK5324096 and AK5328192
· 256K x 32 Version, AK532256
· 512K x 32 version, AK532512
· 1 Meg x 32 version, AK5321024
· 4 Meg x 32 version, AK5324096
· 8 Meg x 32 version, AK5328192
Pin #
ADDITIONAL OPTIONS AVAILABLE
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
5.32 Watt Max Active (60nS)
4.44 Watt Max Active (70 nS)
3.79 Watt Max Active (80 nS)
88 mW Max Standby
AK532256
+
1
Vss
Vss
Vss
-80
NC
Symbol
DQ20
DQ21
DQ22
DQ23
RAS3
RAS2
DQ4
DQ5
DQ6
DQ7
Vcc
Dynamic Random Access Memory
NC
NC
NC
NC
A7
A8
A9
2,097,152 Word by 32 Bit CMOS
Pin #
37
38
39
40
41
42
43
44
45
46
47
48
46
50
51
52
53
54
Presence Detect - 2 Meg x 32
PD1
PD2
PD3
PD4
Symbol
CAS0
CAS2
CAS3
CAS1
RAS0
RAS1
DQ24
DQ25
DQ10
DQ26
DQ8
DQ9
Vss
WE
NC
NC
NC
NC
-60
NC
NC
NC
NC
Pin #
Vss
-70
NC
NC
NC
AK5322048W
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
Vss
-80
NC
NC
NC
Symbol
DQ11
DQ27
DQ12
DQ28
DQ29
DQ13
DQ30
DQ14
DQ31
DQ15
PD1
PD2
PD3
PD4
Vcc
Vss
NC
NC
+
72

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ak5322048w Summary of contents

Page 1

... WE Write Enable Presence Detect 1 4 Vcc 5V Supply Vss Ground NC No Connect MODULE OPTIONS Leadless SIM: AK5322048W Leaded ZIP: AK5322048Z + 1 · Power 5.32 Watt Max Active (60nS) 4.44 Watt Max Active (70 nS) to 3.79 Watt Max Active (80 nS Max Standby with RAS and 0 1 · ...

Page 2

FUNCTIONAL DIAGRAM MECHANICAL DIMENSIONS 1.000" MAX + + 0.425" 0.375" 0.250" 1 ACCUTEK 5 NEW PASTURE ROAD NEWBURYPORT, MA 01950-4040 PHONE: 978-465-6200 Email: MICROCIRCUIT CORPORATION Internet: www.accutekmicro.com 4.250" 3.985" 0.125" 0.080" Accutek reserves the right to ...

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