MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK5368192W high density memory module is a
CMOS dynamic RAM organized in 8192K x 36 bit words. The mod-
ule consists of sixteen standard 4 Meg x 4 DRAMs and eight 4 Meg
x 1 DRAMs, each in plastic SOJ packages. The assembly has 14
drams mounted on the front side and 10 drams mounted on the back
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 AK5368192W is identical to sixteen 4M x 4 plus
eight 4M x 1 Drams. There are four CAS lines and four RAS lines.
On each bank of 4M x 36, independent byte control is accomplished
by four CAS lines. Each separate CAS line controls two 4M x 4
Drams along with a 4M x 1 Dram with data in tied to data out to form a
9 bit byte. Two banks of 36 bits are controlled by the two pairs of
RAS lines. An eighteen bit data path can be produced by connect-
ing DQ
0
to DQ
18
, DQ
1
to DQ
19
, etc. and alternately strobing RAS
0
with RAS
1
and RAS
2
with RAS
3
.
·
·
·
·
·
1
72
ACCUTEK
AK5368192W
8,388,608 by 36 Bit CMOS
Dynamic Random Access Memory
Single 5 Volt Power Supply
2048 Refresh Cycles, 32 mSEC
Available in Fast Page Mode and Static Column mode versions
Available in leadless (W) or leaded Zip (Z) versions
Downward compatible with AK5364096W through AK536256W
sizes
EXAMPLES
AK5368192WP-70
8Meg x 36 CMOS Dynamic RAM, SIM, Page Mode, Commercial 70
nSEC Access Time
FEATURES
·
·
·
·
·
8,388,608 x 36 bit organization
72 pad Single In-Line Module
Multiple CAS and RAS lines allow x18 or x36 bit widths
CAS-before-RAS, RAS-only or hidden refresh
Power
7.30 Watt Max Active (60nS)
6.68 Watt Max Active (70 nS)
252 mW Max Standby
·
Operating free air temperature 0
o
C to 70
o
C
ADDITIONAL OPTIONS AVAILABLE
·
4 Meg x 36 version, drams on one side only
Reference Part No. AK5364096W4096 Refresh Cycles, 64
mSEC available for all module sizes
PIN NOMENCLATURE
DQ
0
- DQ
35
A0 - A10, 2K Refresh
A0 - A11, 4K Refresh
PIN ASSIGNMENT
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SYMBOL
Vss
DQ0
DQ18
DQ1
DQ19
DQ2
DQ20
DQ3
DQ21
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
DQ22
DQ5
DQ23
DQ6
DQ24
DQ7
DQ25
A7
A11
Vcc
A8
A9
RAS3
RAS2
DQ26
DQ8
4 Meg x 36
-60
Vss
NC
NC
NC
-70
Vss
NC
Vss
NC
PIN #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
SYMBOL
DQ17
DQ35
VssV
CAS0
CAS2
CAS3
CAS1
RAS0
RAS1
NC
WE
NC
DQ9
DQ27
DQ10
DQ28
DQ11
DQ29
PIN #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
SYMBOL
DQ12
DQ30
DQ13
DQ31
Vcc
DQ32
DQ14
DQ33
DQ15
DQ34
DQ16
NC
PD1
PD2
PD3
PD4
NC
Vss
Data In/Data Out
Address Inputs
Address Inputs
Column Address Strobe
Row Address Strobe
Write Enable
Presence Detect
5v Supply
Ground
No Connect
CAS
0
- CAS
3
RAS
0
- RAS
3
WE
PD
1
- PD
4
Vcc
Vss
NC
MODULE OPTIONS
Leadless SIM: AK5368192W
Leaded ZIP: AK5368192Z
Presence Detect - 8 Meg x 36
PD1
PD2
PD3
PD4
-60
NC
Vss
NC
NC
-70
NC
Vss
Vss
NC
ACCUTEK [ ACCUTEK MICROCIRCUIT CORPORATION ]
