MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK5364096W high density memory module is a
CMOS Dynamic RAM organized in 4096K x 36 bit words. The mod-
ule consists of eight standard 4 Meg x 4 DRAMs and four 4 Meg x 1
DRAMs in plastic SOJ packages. The 4 Meg x 4 DRAMs are
mounted on the front surface and the 4 Meg x 1 parity DRAMs are
mounted on the back 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 applications where high density and ease of inserting ad-
ditional memory are important.
The operation of the AK5364096W is identical to eight 4Meg x 4 plus
four 4Meg x 1 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 4Meg x 4 DRAMs, along with a 4Meg
x 1 DRAM with data in tied to data out to form a 9 bit byte. The bank
of 36 bits is controlled by the two RAS lines. An eighteen bit data
path can be produced by connecting DQ
0
to DQ
18
, DQ
1
to DQ
19
,
etc. and alternately strobing RAS
0
with RAS
2
.
ACCUTEK
AK5364096W
4,194,304 Word by 36 Bit CMOS
Dynamic Random Access Memory
+
+
1
72
FEATURES
·
·
·
·
·
4,194,304 x 36 bit organization
Low profile board height of 0.875 inch
72 pad Single In-Line Module
Multiple CAS and RAS lines allow x18 or x36 bit widths
Power:
7.92 Watt Max Active (60nS)
6.60 Watt Max Active (70 nS)
66 mW Max Standby
·
·
·
·
·
·
CAS-before-RAS, RAS-only or hidden refresh
Single 5 Volt Power Supply
2048 Refresh Cycles, 32 mSEC
Available in Fast Page Mode, EDO and Static Column Mode
Available in leadless SIM or leaded ZIP versions
Downward compatible with AK5362048W, AK5361024W,
AK536512W and AK536256W
·
Upward compatible with AK5368192W
·
Operating free air temperature 0
0
C to 70
0
C
EXAMPLE
AK5364096WP-70
4Meg x 36 CMOS Dynamic RAM, SIM, Page Mode, Commercial
70nSEC Access Time
PIN NOMENCLATURE
A
0
- A
10
DQ
0
- DQ
35
CAS
0
- CAS
3
RAS
0
, RAS
2
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
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
NC
Vcc
A8
A9
NC
RAS2
DQ26
DQ8
PIN #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
SYMBOL
DQ17
DQ35
Vss
CAS0
CAS2
CAS3
CAS1
RAS0
NC
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
MODULE OPTIONS
Leadless SIM: AK5364096W
Leaded ZIP: AK5364096Z
Presence Detect -
PD1
PD2
PD3
PD4
-60
Vss
NC
NC
Nc
-70
Vss
NC
Vss
NC
ACCUTEK [ ACCUTEK MICROCIRCUIT CORPORATION ]
