MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK5328192W high density memory module is a
CMOS dynamic RAM organized in 8192K x 32 bit words. The mod-
ule consists of sixteen standard 4 Meg x 4 DRAMs in plastic SOJ
packages. 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 AK5328192W is identical to sixteen 4M x 4
Drams. There are four CAS lines and four RAS lines. On each bank
of 4M x 32, independent byte control is accomplished by four CAS
lines. Each separate CAS line controls two 4M x 4 Drams to form an
8 bit byte. 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
0
to DQ
16
, DQ
1
to DQ
17
, etc. and alternately strobing RAS
0
with
RAS
1
and RAS
2
with RAS
3
.
ACCUTEK
AK5328192W
8,388,608 by 32 Bit CMOS
Dynamic Random Access Memory
+
+
1
72
·
Single 5 Volt Power Supply
·
2048 Refresh Cycles, 32 mSEC
·
4096 Refresh Cycles, 64 mSEC available for all module sizes
·
Available in Fast Page Mode and EDO
·
Available in leadless (W) or leaded Zip (Z) versions
·
Downward compatible with AK5324096, AK5322048,
AK5321024, AK532512 andAK532256
FEATURES
·
8,388,608 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
·
Power
5.32 Watt Max Active (60nS)
4.48 Watt Max Active (70 nS)
88 mW Max Standby
·
Operating free air temperature 0
o
C to 70
o
C
EXAMPLES
AK5328192WP-60
8 Meg x 32 CMOS Dynamic RAM, SIM, Page Mode, Commercial 60
nSEC Access Time
PIN NOMENCLATURE
A
0
- A
10
DQ
0
- DQ
31
CAS
0
- CAS
3
RAS
0
- RAS
3
WE
OE
PD
1
- PD
4
Vcc
Vss
NC
Address Inputs
Data In/Data Out
Column Address Strobe
Row Address Strobe
Write Enable
Output Enable
Presence Detect
5v Supply
Ground
No Connect
PIN ASSIGNMENT
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SYMBOL
Vss
DQ0
DQ16
DQ1
DQ17
DQ2
DQ18
DQ3
DQ19
Vcc
NC
A0
A1
A2
A3
A4
A5
A6
PIN #
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
SYMBOL
A10
DQ4
DQ20
DQ5
DQ21
DQ6
DQ22
DQ7
DQ23
A7
NC
Vcc
A8
A9
RAS3
RAS2
NC
NC
PIN #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
SYMBOL
NC
NC
Vss
CAS0
CAS2
CAS3
CAS1
RAS0
RAS1
NC
WE
NC
DQ8
DQ24
DQ9
DQ25
DQ10
DQ26
PIN #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
SYMBOL
DQ11
DQ27
DQ12
DQ28
Vcc
DQ29
DQ13
DQ30
DQ14
DQ31
DQ15
NC
PD1
PD2
PD3
PD4
NC
Vss
MODULE OPTIONS
Leadless SIM: AK5328192W
Leaded ZIP: AK5328192Z
Presence Detect -
PD1
PD2
PD3
PD4
-60
NC
Vss
NC
NC
-70
NC
Vss
Vss
NC
ACCUTEK [ ACCUTEK MICROCIRCUIT CORPORATION ]
