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PDF AK5321024N Data sheet ( Hoja de datos )
| Número de pieza | AK5321024N | |
| Descripción | 1048576 Word by 32 Bit CMOS Dynamic Random Access Memory | |
| Fabricantes | ACCUTEK | |
| Logotipo |  |
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ACCUTEK
MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK5321024N 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 DRAMs in plastic TSOP
packages. The assembly has 2 drams mounted on the front side of
a printed circuit board in a 72 pad leadless Dual Row Sodim config-
uration.
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 AK5321024N is identical to two 1Meg x 16
Drams. There are four CAS lines and two RAS lines. On each bank
of 1Meg x 32, independent byte control is accomplished by four CAS
lines. Each seperate CAS line controls one byte of the 1Meg x 16
Dram. A sixteen bit data path can be produced by connecting DQ0
to DQ16, DQ1 to DQ17 etc. and alternately strobing RAS0 with RAS2.
FEATURES
· 1,048,576 x 32 bit organization
· 72 pad Dual Row Sodim Module
· Multiple CAS and RAS lines allow x16 or x32 bit widths
· CAS-before-RAS, RAS-only or hidden refresh
· Operating free air temperature 0oC to 70oC
· Single 5 Volt Power Supply
· 1024 Refresh Cycles, 16 mSEC
AK5321024N
1,048,576 Word by 32 Bit CMOS
Dynamic Random Access Memory
Front
Side
1 71
2 72
Back
Side
· Available in Fast Page Mode and Static Column Mode
versions
· Power
1.76 Watt Max Active (60nS)
1.65 Watt Max Active (70 nS)
1.54 Watt Max Active (80 nS)
11 mW Max StandbyAvailable
ADDITIONAL OPTIONS AVAILABLE
2 Meg x 32 version, AK5322048N
PIN NOMENCLATURE
PIN ASSIGNMENT
DQ0 - DQ31
A0 - A9
CAS0 - CAS3
RAS0, RAS2
WE
PD0 - PD6
Vcc
Vss
NC
Data In/Data Out
Address Inputs
Column Address Strobe
Row Address Strobe
Write Enable
Presence Detect
5v Supply
Ground
No Connect
MODULE OPTIONS
Leadless SODIM: AK5321024N
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SYMBOL
Vss
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
Vcc
PD0
A0
A1
A2
A3
A4
A5
A6
Presence Detect -
Access
Time
PD0
-60 NC
-70 NC
PIN #
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
SYMBOL
NC
NC
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
A7
NC
Vcc
A8
A9
NC
RAS2
DQ15
NC
PD1
PD2
Vss Vss
Vss Vss
PIN #
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
SYMBOL
DQ16
DQ17
Vss
CAS0
CAS2
CAS3
CAS1
RAS0
NC
NC
WE
NC
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
PD3
PD4
NC NC
NC Vss
PIN #
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
SYMBOL
NC
DQ24
DQ25
DQ26
DQ28
DQ27
Vcc
DQ29
DQ30
DQ31
NC
PD1
PD2
PD3
PD4
PD5
PD6
Vss
PD5
NC
NC
PD6
NC
NC
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