AK5361024BW
1,048,576 Word by 36 Bit CMOS
Dynamic Random Access Memory
ACCUTEK
MICROCIRCUIT CORPORATION
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.
1
72
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.
· 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
FEATURES
· 1,048,576 x 36 bit organization
· Downward compatible with AK536512W and AK536256W
· 72 pad Single In-Line Module
· Upward compatible with AK5362048W, AK5364096W and
AK5368192W
· Standard with gold fingers, solder or tin plating optional
· CAS-before-RAS, RAS-only or hidden refresh
· Operating free air temperature 0oC to 70oC
· Single 5 Volt Power Supply
ADDITIONAL OPTIONS AVAILABLE
1 Meg x 32 version, AK5321024BW
2 Meg x 32 version, AK5322048BW
2 Meg x 36 version, AK5362048BW
· 1024 Refresh Cycles, 16 mSEC
· Available in Fast Page Mode or EDO
PIN NOMENCLATURE
PIN ASSIGNMENT
A0 - A9
DQ0 - DQ35
W
Address Inputs
PIN #
1
SYMBOL
Vss
PIN #
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
SYMBOL
NC
PIN #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
SYMBOL
DQ17
DQ35
Vss
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
Data In/Data Out
Write Enable
2
DQ0
DQ18
DQ1
DQ19
DQ2
DQ20
DQ3
DQ21
Vcc
DQ4
DQ22
DQ5
DQ23
DQ6
DQ24
DQ7
DQ25
A7
3
4
CAS0
CAS2
CAS3
CAS1
RAS0
NC
RAS0, RAS2
CAS0 - CAS3
PD1 - PD4
Vss
Row Address Strobe
Column Address Strobe
Presence Detect
Ground
5
6
DQ32
DQ14
DQ33
DQ15
DQ34
DQ16
NC
7
8
9
10
11
12
13
14
15
16
17
18
NC
NC
NC
W
Vcc
5v Supply
A0
Vcc
NC
A1
A8
DQ9
PD1
NC
No Connect
A2
A9
DQ27
DQ10
DQ28
DQ11
DQ29
PD2
A3
NC
PD3
A4
RAS2
DQ26
DQ8
PD4
MODULE OPTIONS
A5
NC
A6
Vss
Leadless SIM: AK5361024BW
Presence Detect
-50
-60
-70
PD1
PD2
PD3
PD4
Vss
Vss
Vss
Vss
Vss
Vss
NC
NC
Vss
Vss
Vss
NC