MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK5321024BW high density memory module is a
CMOS dynamic RAM organized in 1024K x 32 bit words. The mod-
ule consists of two standard 1 Meg x 16 bits DRAMs in plastic SOJ
packages 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 AK5321024BW is identical to eight 1 Meg x 4
Drams. There are four CAS lines and two RAS lines. On each bank
of 1M x 32, independent byte control is accomplished by four CAS
lines. Each seperate CAS line controls one byte of the 1 Meg x 16
Dram.
ACCUTEK
AK5321024BW
1,048,576 Word by 32 Bit CMOS
Dynamic Random Access Memory
+
1
+
72
FEATURES
·
1,048,576 x 32 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
0
C to 70
0
C
·
Single 5 Volt Power Supply
·
1024 Refresh Cycles, 16 mSEC
·
Available in Fast Page Mode or EDO
·
Power:
2.0 Watt Max Active (50nS)
1.7 Watt Max Active (60 nS)
1.6 Watt Max Active (70 nS)
20 mW Max Standby
·
Downward compatible with AK532512W and AK532256W
·
Upward compatible with AK5322048W, AK5324096W and
AK5328192W
ADDITIONAL OPTIONS AVAILABLE
·
1 Meg x 36 version, AK5361024BW
·
2 Meg x 32 version, AK5322048BW
·
2 Meg x 36 version, AK5362048BW
PIN NOMENCLATURE
A
0
- A
9
DQ
0
- DQ
34
WE
RAS
0
, RAS
2
CAS
0
- CAS
3
PD
1
- PD
4
Vss
Vcc
NC
Address Inputs
Data In/Data Out
Write Enable
Row Address Strobe
Column Address Strobe
Presence Detect
Ground
5v Supply
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
NC
DQ4
DQ22
DQ5
DQ23
DQ6
DQ24
DQ7
DQ25
A7
NC
Vcc
A8
A9
NC
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
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: AK5321024BW
Leades ZIP: AK5321024BZ
Presence Detect
PD1
PD2
PD3
PD4
-50
Vss
Vss
Vss
Vss
-60
Vss
Vss
NC
NC
-70
Vss
Vss
Vss
NC
ACCUTEK [ ACCUTEK MICROCIRCUIT CORPORATION ]
