AK5361024W_09 [ACCUTEK]
Dynamic Random Access Memory; 动态随机存取存储器
| 型号： | AK5361024W_09 |
| 厂家： | 
ACCUTEK MICROCIRCUIT CORPORATION |
| 描述： | Dynamic Random Access Memory |
| 文件： | 总2页 (文件大小：97K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AK5361024W
1,048,576 Word by 36 Bit CMOS
Dynamic Random Access Memory
ACCUTEK
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.
+
+
1
72
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 DQ0 to DQ18, DQ1 to DQ19,
etc. and alternately strobing RAS0 with RAS2.
· 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
FEATURES
· Available in Fast Page Mode and Static Column Mode versions
· Available in leadless SIM or leaded ZIP versions
· Downward compatible with AK536512W and AK536256W
· 1,048,576 x 36 bit organization
· Low profile board height of 0.875 inch
· 72 pad Single In-Line Module
· Upward compatible with AK5362048W, AK5364096W and
· Multiple CAS and RAS lines allow x18 or x36 bit widths
· CAS-before-RAS, RAS-only or hidden refresh
AK5368192W
· Operating free air temperature 00C to 700C
PIN NOMENCLATURE
PIN ASSIGNMENT
Pin #
1
Symbol
Vss
Pin #
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Symbol
NC
Pin #
37
38
39
40
41
42
43
44
45
46
47
48
46
50
51
52
53
54
Symbol
DQ17
DQ35
Vss
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
DQ0 - DQ35
A0 - A9
Data In/Data Out
2
DQ0
DQ18
DQ1
DQ19
DQ2
DQ20
DQ3
DQ21
Vcc
DQ4
DQ22
DQ5
DQ23
DQ6
DQ24
DQ7
DQ25
A7
Address Inputs
Column Address Strobe
Row Address Strobe
Write Enable
3
CAS0 - CAS3
RAS0 & RAS2
WE
4
CAS0
CAS2
CAS3
CAS1
RAS0
NC
5
6
DQ32
DQ14
DQ33
DQ15
DQ34
DQ16
NC
7
8
PD1 - PD4
Vcc
Presence Detect
5v Supply
9
10
11
12
13
14
15
16
17
18
NC
NC
NC
WE
Vss
Ground
A0
Vcc
NC
A1
A8
DQ9
PD1
NC
No Connect
A2
A9
DQ27
DQ10
DQ28
DQ11
DQ29
PD2
A3
NC
PD3
A4
RAS2
DQ26
DQ8
PD4
MODULE OPTIONS
A5
NC
A6
Vss
Leadless SIM: AK5361024W
Presence Detect
Leaded ZIP: AK5361024Z
-60
-70
-80
PD1
PD2
PD3
PD4
Vss
Vss
NC
NC
Vss
Vss
Vss
NC
Vss
Vss
NC
Vss
FUNCTIONAL DIAGRAM
CAS0
RAS0
CAS1
CAS2
RAS2
CAS3
A0
A1
A0 - A9
RAS
CAS
WE
DQ1
DQ2
DQ3
DQ4 OE
A0 - A9
RAS
CAS
WE
DQ1
DQ2
DQ3
DQ4 OE
A0 - A9
RAS
CAS
WE
DQ1
DQ2
DQ3
DQ4 OE
A0 - A9
RAS
CAS
WE
DQ1
DQ2
DQ3
DQ4 OE
A0 - A9
RAS
CAS
WE
DQ1
DQ2
DQ3
DQ4 OE
A0 - A9
RAS
CAS
WE
DQ1
DQ2
DQ3
DQ4 OE
A0 - A9
RAS
CAS
WE
DQ1
DQ2
DQ3
DQ4 OE
A0 - A9
RAS
CAS
WE
DQ1
DQ2
DQ3
DQ4 OE
A2
A3
A4
A5
A6
A7
A8
A9
A0 - A9
A0 - A9
A0 - A9
A0 - A9
RAS
CAS
WE
RAS
CAS
WE
RAS
CAS
WE
RAS
CAS
WE
D
Q
D
Q
D
Q
D
Q
WE
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ9
DQ13
DQ14
DQ15
DQ16
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
DQ25
DQ27
DQ28
DQ29
DQ30
DQ31
DQ32
DQ33
DQ34
DQ8
DQ26
DQ10
DQ11
DQ12
DQ17
DQ35
MECHANICAL DIMENSIONS
+
+
4.250"
3.850"
0.330"
MAX
0.875"
MAX
+
+
0.425"
0.375"
0.250"
0.050"
TYP
0.125"
0.080"
C C
L L
C C
L L
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 de-
scribed; no circuit patent licenses are implied. Preliminary data sheets contain mini-
mum and maximum limits based upon design objectives, which are subject to change
upon full characterization over the specific operating conditions.
5 NEW PASTURE ROAD
NEWBURYPORT, MA 01950-4040
PHONE: 978-465-6200 FAX: 978-462-3396
Email: sales@accutekmicro.com
Internet: www.accutekmicro.com
ACCUTEK
MICROCIRCUIT CORPORATION
相关型号：
©2020 ICPDF网 联系我们和版权申明