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AK5361024W_09 参数 Datasheet PDF下载

AK5361024W_09图片预览
型号: AK5361024W_09
PDF下载: 下载PDF文件 查看货源
内容描述: 动态随机存取存储器 [Dynamic Random Access Memory]
分类和应用: 存储
文件页数/大小: 2 页 / 97 K
品牌: ACCUTEK [ ACCUTEK MICROCIRCUIT CORPORATION ]
 浏览型号AK5361024W_09的Datasheet PDF文件第2页  
MICROCIRCUIT CORPORATION
DESCRIPTION
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
0
to DQ
18
, DQ
1
to DQ
19
,
etc. and alternately strobing RAS
0
with RAS
2
.
ACCUTEK
AK5361024W
1,048,576 Word by 36 Bit CMOS
Dynamic Random Access Memory
+
1
+
72
FEATURES
·
·
·
·
·
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
·
Power
7.26 Watt Max Active (60nS)
6.16 Watt Max Active (70 nS)
5.28 Watt Max Active (80 nS)
66 mW Max Standby
·
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
AK5368192W
·
Operating free air temperature 0
0
C to 70
0
C
PIN NOMENCLATURE
DQ
0
- DQ
35
A
0
- A
9
CAS
0
- CAS
3
RAS
0
& RAS
2
WE
PD
1
- PD
4
Vcc
Vss
NC
Data In/Data Out
Address Inputs
Column Address Strobe
Row Address Strobe
Write Enable
Presence Detect
5v Supply
Ground
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
DQ26
DQ8
Pin #
37
38
39
40
41
42
43
44
45
46
47
48
46
50
51
52
53
54
Symbol
DQ17
DQ35
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: AK5361024W
Leaded ZIP: AK5361024Z
Presence Detect
PD1
PD2
PD3
PD4
-60
Vss
Vss
NC
NC
-70
Vss
Vss
Vss
NC
-80
Vss
Vss
NC
Vss