ak5361024w Accutek Microcircuit Corporation, ak5361024w Datasheet
ak5361024w
Manufacturer Part Number
ak5361024w
Description
1,048,576 Word By 36 Bit Cmos Dynamic Random Access Memory Microcircuit Corporation
Manufacturer
Accutek Microcircuit Corporation
Datasheet
1.AK5361024W.pdf
(2 pages)
The Accutek AK5361024W high density memory module is a
CMOS Dynamic RAM organized in 1024K x 36 bit words. The mod-
ule consists of eight standard 1 Meg x 4 DRAMsin plastic SOJ pack-
ages mounted on the front side of a printed circuit board and four 1
Meg x 1 DRAMs in plastic SOJ packages mounted on the back side
of a printed circuit board with a low profile height of only 0.875 inch
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 AK5361024W 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 separate CAS line controls two 1Meg x 4 DRAMs, along with a
1 Meg 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
etc. and alternately strobing RAS
· 1,048,576 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
· CAS-before-RAS, RAS-only or hidden refresh
PIN NOMENCLATURE
MODULE OPTIONS
DESCRIPTION
FEATURES
DQ
A
CAS
RAS
WE
PD
Vcc
Vss
NC
Leadless SIM: AK5361024W
Leaded ZIP: AK5361024Z
0
- A
1
0
0
0
- PD
- DQ
9
- CAS
& RAS
MICROCIRCUIT CORPORATION
ACCUTEK
4
35
3
2
Data In/Data Out
Address Inputs
Column Address Strobe
Row Address Strobe
Write Enable
Presence Detect
5v Supply
Ground
No Connect
0
with RAS
0
2
.
to DQ
PIN ASSIGNMENT
Pin #
10
11
12
13
14
15
16
17
18
Presence Detect
1
2
3
4
5
6
7
8
9
PD1
PD2
PD3
PD4
18
, DQ
1
to DQ
Symbol
DQ18
DQ19
DQ20
DQ21
DQ0
DQ1
DQ2
DQ3
Vss
Vcc
Vss
Vss
NC
A0
A1
A2
A3
A4
A5
A6
-60
NC
NC
19
,
Vss
Vss
Vss
-70
NC
Pin #
· Power
· Single 5 Volt Power Supply
· 1024 Refresh Cycles, 16 mSEC
· Available in Fast Page Mode and Static Column Mode versions
· Available in leadless SIM or leaded ZIP versions
· Downward compatible with AK536512W and AK536256W
· Upward compatible with AK5362048W, AK5364096W and
· Operating free air temperature 0
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
AK5368192W
7.26 Watt Max Active (60nS)
6.16 Watt Max Active (70 nS)
5.28 Watt Max Active (80 nS)
66 mW Max Standby
Vss
Vss
Vss
-80
NC
Dynamic Random Access Memory
Symbol
DQ22
DQ23
DQ24
DQ25
RAS2
DQ26
DQ4
DQ5
DQ6
DQ7
DQ8
Vcc
NC
NC
NC
A7
A8
A9
1,048,576 Word by 36 Bit CMOS
Pin #
37
38
39
40
41
42
43
44
45
46
47
48
46
50
51
52
53
54
Symbol
DQ17
DQ35
CAS0
CAS2
CAS3
CAS1
RAS0
DQ27
DQ10
DQ28
DQ11
DQ29
DQ9
Vss
WE
NC
NC
NC
0
C to 70
0
AK5361024W
C
Pin #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
Symbol
DQ12
DQ30
DQ13
DQ31
DQ32
DQ14
DQ33
DQ15
DQ34
DQ16
PD1
PD2
PD3
PD4
Vcc
Vss
NC
NC
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ak5361024w Summary of contents
Page 1
... The operation of the AK5361024W 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. ...
Page 2
FUNCTIONAL DIAGRAM CAS 0 CAS1 RAS RAS RAS CAS CAS A4 RAS CAS DQ1 DQ1 DQ2 DQ2 A7 DQ3 ...