参数资料
型号: AK5364096W4096
厂商: Accutek Microcircuit Corporation
英文描述: 8,388,608 by 36 Bit CMOS Dynamic Random Access Memory
中文描述: 8388608 36位CMOS动态随机存取存储器
文件页数: 1/2页
文件大小: 116K
代理商: AK5364096W4096
DESCRIPTION
The Accutek AK5368192W high density memory module is a
CMOS dynamic RAM organized in 8192K x 36 bit words. The mod-
ule consists of sixteen standard 4 Meg x 4 DRAMs and eight 4 Meg
x 1 DRAMs, each in plastic SOJ packages. The assembly has 14
drams mounted on the front side and 10 drams mounted on the
backsideofaprintedcircuitboardina72padleadlessSIMconfigu-
ration.
This configuration allows socket-mounting of large quantities of
memoryinapplicationswherehighdensityandeaseofinsertingad-
ditional memory are important.
TheoperationoftheAK5368192Wisidenticaltosixteen4Mx4plus
eight 4M x 1 Drams. There are four
CAS
lines and four
RAS
lines.
Oneachbankof4Mx36,independentbytecontrolisaccomplished
by four
CAS
lines. Each separate
CAS
line controls two 4M x 4
Drams along with a 4M x 1 Dram with data in tied to data out to form
a 9 bit byte. Two banks of 36 bits are controlled by the two pairs of
RAS
lines. An eighteen bit data path can be produced by connect-
ing DQ
0
to DQ
18
, DQ
1
to DQ
19
, etc. and alternately strobing
RAS
0
with
RAS
1
and
RAS
2
with
RAS
3
.
FEATURES
8,388,608 x 36 bit organization
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
Power
7.30 Watt Max Active (60nS)
6.68 Watt Max Active (70 nS)
252 mW Max Standby
Operating free air temperature 0
o
C to 70
o
C
Single 5 Volt Power Supply
2048 Refresh Cycles, 32 mSEC
Available in Fast Page Mode and Static Column mode ver-
sions
Available in leadless (W) or leaded Zip (Z) versions
Downward compatible with AK5364096W through AK536256W
sizes
EXAMPLES
AK5368192WP-70
8Megx36CMOSDynamicRAM,SIM,PageMode,Commercial70
nSEC Access Time
ADDITIONAL OPTIONS AVAILABLE
4 Meg x 36 version, drams on one side only
Reference Part No. AK5364096W4096 Refresh Cycles, 64
mSEC available for all module sizes
Accutek
Microcircuit
Corporation
AK5368192W
8,388,608 by 36 Bit CMOS
Dynamic Random Access Memory
PIN NOMENCLATURE
DQ
0
- DQ
35
Data In/Data Out
A0- A10, 2K Refresh
Address Inputs
A0- A11, 4K Refresh
Address Inputs
CAS
0
- CAS
3
Column Address Strobe
RAS
0
- RAS
3
Row Address Strobe
WE
Write Enable
PD
1
- PD
4
Presence Detect
Vcc
5v Supply
Vss
Ground
NC
No Connect
MODULE OPTIONS
Leadless SIM: AK5368192W
Leaded ZIP: AK5368192Z
PIN ASSIGNMENT
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
PIN #
SYMBOL
1
Vss
19
A10
37
DQ17
55
DQ12
2
DQ0
20
DQ4
38
DQ35
56
DQ30
3
DQ18
21
DQ22
39
VssV
57
DQ13
4
DQ1
22
DQ5
40
CAS0
58
DQ31
5
DQ19
23
DQ23
41
CAS2
59
Vcc
6
DQ2
24
DQ6
42
CAS3
60
DQ32
7
DQ20
25
DQ24
43
CAS1
61
DQ14
8
DQ3
26
DQ7
44
RAS0
62
DQ33
9
DQ21
27
DQ25
45
RAS1
63
DQ15
10
Vcc
28
A7
46
NC
64
DQ34
11
NC
29
A11
47
WE
65
DQ16
12
A0
30
Vcc
48
NC
66
NC
13
A1
31
A8
49
DQ9
67
PD1
14
A2
32
A9
50
DQ27
68
PD2
15
A3
33
RAS3
51
DQ10
69
PD3
16
A4
34
RAS2
52
DQ28
70
PD4
17
A5
35
DQ26
53
DQ11
71
NC
18
A6
36
DQ8
54
DQ29
72
Vss
Presence Detect - 8 Meg x 36
4 Meg x 36
-60
-70
-60
-70
PD1
NC
NC
Vss
Vss
PD2
Vss
Vss
NC
NC
PD3
NC
Vss
NC
Vss
PD4
NC
NC
NC
NC
+
+
1
72
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