DESCRIPTION
The Accutek AK5361024BW high density memory module is a
CMOS dynamic RAM organized in 1024K x 36 bit words. The mod-
ule consists of two standard 1 Meg x 16 bits DRAMs and one 1 Meg
x 4 bit Quad CAS DRAM in plastic SOJ packages. The assembly
has 3 DRAMs mounted on the front 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 AK5361024BW is identical to eight 1 Meg x 4
plus four 1 Meg x 1 DRAMs. There are four
CAS
lines and two
RAS
lines. Independent byte control is accomplished by four
CAS
lines.
Each seperate
CAS
line controls one byte of the 1 Meg x 16 plus a
parity bit in the QUAD CAS DRAM.
FEATURES
1,048,576 x 36 bit organization
72 pad Single In-Line Module
Standard with gold fingers, solder or tin plating optional
CAS
-before-
RAS
,
RAS
-only or hidden refresh
Operating free air temperature 0
o
C to 70
o
C
Single 5 Volt Power Supply
1024 Refresh Cycles, 16 mSEC
Available in Fast Page Mode or EDO
Power:
2.125 Watt Max Active (50nS)
1.975 Watt Max Active (60 nS)
1.825 Watt Max Active (70 nS)
30 mW Max Standby
Downward compatible with AK536512W and AK536256W
Upward compatible with AK5362048W, AK5364096W and
AK5368192W
ADDITIONAL OPTIONS AVAILABLE
1 Meg x 32 version, AK5321024BW
2 Meg x 32 version, AK5322048BW
2 Meg x 36 version, AK5362048BW
Accutek
Microcircuit
Corporation
AK5361024BW
1,048,576 Word by 36 Bit CMOS
Dynamic Random Access Memory
72
1
PIN NOMENCLATURE
A
0
- A
9
Address Inputs
DQ
0
- DQ
35
Data In/Data Out
W
Write Enable
RAS
0
, RAS
2
Row Address Strobe
CAS
0
- CAS
3
Column Address Strobe
PD
1
- PD
4
Presence Detect
Vss
Ground
Vcc
5v Supply
NC
No Connect
MODULE OPTIONS
Leadless SIM: AK5361024BW
PIN ASSIGNMENT
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
1
Vss
19
NC
37
DQ17
55
DQ12
2
DQ0
20
DQ4
38
DQ35
56
DQ30
3
DQ18
21
DQ22
39
Vss
57
DQ13
4
DQ1
22
DQ5
40
CAS0
58
DQ31
5
DQ19
23
DQ23
41
CAS2
59
Vcc
6
DQ2
24
DQ6
42
CAS3
60
DQ32
7
DQ20
25
DQ24
43
CAS1
61
DQ14
8
DQ3
26
DQ7
44
RAS0
62
DQ33
9
DQ21
27
DQ25
45
NC
63
DQ15
10
Vcc
28
A7
46
NC
64
DQ34
11
NC
29
NC
47
W
65
DQ16
12
A0
30
Vcc
48
NC
66
NC
13
A1
31
A8
49
DQ9
67
PD1
14
A2
32
A9
50
DQ27
68
PD2
15
A3
33
NC
51
DQ10
69
PD3
16
A4
34
RAS2
52
DQ28
70
PD4
17
A5
35
DQ26
53
DQ11
71
NC
18
A6
36
DQ8
54
DQ29
72
Vss
Presence Detect
-50
-60
-70
PD1
Vss
Vss
Vss
PD2
Vss
Vss
Vss
PD3
Vss
NC
Vss
PD4
Vss
NC
NC
FUNCTIONAL DIAGRAM
MECHANICAL DIMENSIONS
ACCUTEK MICROCIRCUIT CORPORATION
BUSINESS CENTER at NEWBURYPORT
2 NEW PASTURE ROAD, SUITE 1
NEWBURYPORT, MA 01950-4054
VOICE:
978-465-6200
FAX:
978-462-3396
Email:
sales@accutekmicro.com
Internet:
www.accutekmicro.com
Accutek reserves the right to make changes in specifications at any time
and without notice. Accutek does not assume any responsibility for the
use of any circuitry described; no circuit patent licenses are implied. Pre-
liminary data sheets contain minimum and maximum limits based upon
design objectives, which are subject to change upon full characterization
over the specific operating conditions.
72
1
.750"
0.400"
0.250"
0.080"
CL
CL
CL
CL
0.125"
0.050"
TYP
4.250"
3.985"
0.200"
MAX
.125" DIA TOOLING HOLE
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ7
DQ10
DQ1
1
DQ12
DQ13
DQ14
DQ15
A
0-A
9
RAS
LCAS
UCAS
OE
WE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ9
DQ10
DQ1
1
DQ12
DQ13
DQ14
DQ15
DQ16
RAS
0
CAS
0
CAS
1
RAS
2
CAS
2
CAS
3
WE
A-
A
09
DQ0
DQ1
DQ2
DQ3
A
0-A
9
RAS
CAS0
CAS1
CAS2
CAS3
OE
WE
+
+
+
+
DQ8
DQ17
DQ26
DQ35
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ7
DQ10
DQ1
1
DQ12
DQ13
DQ14
DQ15
A
0-A
9
RAS
LCAS
UCAS
OE
WE
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
DQ25
DQ27
DQ28
DQ29
DQ30
DQ31
DQ32
DQ33
DQ34
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
=
=
Connected
b
y
Jumper
R0
Open
Jumper
R2
Not
I
nstalled
+
+
+
+
+
+
+
+
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