datasheet for AK5322048BW by Accutek Microcircuit Corporation

datasheet for AK5322048BW by Accutek Microcircuit Corporation
AK5322048BW
2,097,152 Word by 32 Bit CMOS
Dynamic Random Access Memory
ACCUTEK
MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK5322048BW high density memory module is a
CMOS dynamic RAM organized in 2048K x 32 bit words. The module consists of four standard 1 Meg x 16 bits DRAMs in plastic SOJ
packages. The assembly has two DRAMs mounted on each 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 additional memory are important.
The operation of the AK5322048BW is identical to sixteen 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.
FEATURES
· 2,097,152 x 32 bit organization
· 72 pad Single In-Line Module
+
1
72
· Power:
3.96 Watt Max Active (50nS)
3.52 Watt Max Active (60 nS)
3.08 Watt Max Active (70 nS)
44 mW Max Standby
· CAS-before-RAS, RAS-only or hidden refresh
· Downward compatible with AK5321024W, AK532512W and
AK532256W
· Operating free air temperature 0oC to 70oC
· Upward compatible with AK5324096W and AK5328192W
· Single 5 Volt Power Supply
ADDITIONAL OPTIONS AVAILABLE
· 1024 Refresh Cycles, 16 mSEC
1 Meg x 32 version, AK5321024BW
· Available in Fast Page Mode or EDO
1 Meg x 36 version, AK5361024BW
2 Meg x 36 version, AK5362048BW
PIN NOMENCLATURE
PIN ASSIGNMENT
A0 - A9
Address Inputs
DQ0 - DQ35
Data In/Data Out
WE
Write Enable
RAS0 - RAS3
Row Address Strobe
CAS0 - CAS3
Column Address Strobe
PD1 - PD4
Presence Detect
Vss
Ground
Vcc
5v Supply
NC
No Connect
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
MODULE OPTIONS
Leadless SIM: AK5322048BW
SYMBOL
Vss
DQ0
DQ16
DQ1
DQ17
DQ2
DQ18
DQ3
DQ19
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
DQ20
DQ5
DQ21
DQ6
DQ22
DQ7
DQ23
A7
NC
Vcc
A8
A9
RAS3
RAS2
NC
NC
Presence Detect
PD1
PD2
PD3
PD4
-50
NC
VC
Vss
Vss
-60
NC
NC
NC
NC
-70
NC
NC
Vss
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
RAS1
NC
WE
NC
DQ8
DQ24
DQ9
DQ25
DQ10
DQ26
PIN #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
SYMBOL
DQ11
DQ27
DQ12
DQ28
Vcc
DQ29
DQ13
DQ30
DQ14
DQ31
DQ15
NC
PD1
PD1
PD3
PD4
NC
Vss
FUNCTIONAL DIAGRAM
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
MECHANICAL DIMENSIONS
4.250"
3.985"
0.330"
MAX
.125" DIA TOOLING HOLE
.750"
0.400"
0.250"
72
1
0.050"
TYP
0.125"
0.080"
ACCUTEK
MICROCIRCUIT CORPORATION
CL CL
5 NEW PASTURE ROAD
NEWBURYPORT, MA 01950-4040
PHONE: 978-465-6200 FAX: 978-462-3396
Email: [email protected]
Internet: www.accutekmicro.com
CL CL
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. Preliminary data sheets contain minimum and maximum limits based upon
design objectives, which are subject to change upon full characterization
over the specific operating conditions.
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