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AK5322048N_09 PDF预览

AK5322048N_09

更新时间: 2024-09-25 12:55:55
品牌 Logo 应用领域
ACCUTEK 存储
页数 文件大小 规格书
2页 228K
描述
Dynamic Random Access Memory

AK5322048N_09 数据手册

 浏览型号AK5322048N_09的Datasheet PDF文件第2页 
AK5322048N  
2,097,152 Word by 32 Bit CMOS  
Dynamic Random Access Memory  
ACCUTEK  
MICROCIRCUIT CORPORATION  
DESCRIPTION  
Front  
Side  
The Accutek AK5322048N high density memory module is a CMOS  
dynamic RAM organized in 2048K x 32 bit words. The module con-  
sists of four standard 1 Meg x 16 DRAMs in plastic TSOP packages.  
The assembly has 2 drams mounted on each side of a printed circuit  
board in a 72 pad leadless Dual Row Sodim configuration.  
1
2
71  
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.  
Back  
Side  
The operation of the AK5322048A is identical to four 1M x 16  
Drams. There are four CAS lines and four RAS lines. On each bank  
of 1M x 32, independent byte control is accomplished by four CAS  
lines. Each seperate CAS line controls one byte of the 1M x 16  
Dram. Two banks of 32 bits are controlled by the two pairs of RAS  
lines. A sixteen bit data path can be produced by connecting DQ0 to  
DQ16, DQ1 to DQ17 etc. and alternately strobing RAS0 with RAS1  
and RAS2 with RAS3.  
FEATURES  
· Available in Fast Page Mode and Static Column Mode versions  
· 2,097,152 x 32 bit organization  
· Power  
· 72 pad Dual Row Sodim Module  
1.80 Watt Max Active (60nS)  
1.66 Watt Max Active (70 nS)  
1.44 Watt Max Active (80 nS)  
22 mW Max StandbyAvailable  
· 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  
ADDITIONAL OPTIONS AVAILABLE  
1 Meg x 32 version, AK5321024N  
· 1024 Refresh Cycles, 16 mSEC  
PIN NOMENCLATURE  
PIN ASSIGNMENT  
DQ0 - DQ31  
A0 - A9  
Data In/Data Out  
PIN #  
1
SYMBOL  
Vss  
DQ0  
DQ1  
DQ2  
DQ3  
DQ4  
DQ5  
DQ6  
DQ7  
Vcc  
PD0  
A0  
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  
49  
50  
51  
52  
53  
54  
SYMBOL  
DQ16  
DQ17  
Vss  
PIN #  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
SYMBOL  
NC  
Address Inputs  
Column Address Strobe  
Row Address Strobe  
Write Enable  
2
NC  
DQ24  
DQ25  
DQ26  
DQ28  
DQ27  
Vcc  
3
DQ8  
DQ9  
DQ10  
DQ11  
DQ12  
DQ13  
DQ14  
A7  
CAS0 - CAS3  
RAS0 - RAS3  
WE  
4
CAS0  
CAS2  
CAS3  
CAS1  
RAS0  
RAS1  
NC  
5
6
7
8
DQ29  
DQ30  
DQ31  
NC  
PD0 - PD6  
Vcc  
Presence Detect  
5v Supply  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
NC  
WE  
Vss  
Ground  
Vcc  
NC  
PD1  
A1  
A8  
DQ18  
DQ19  
DQ20  
DQ21  
DQ22  
DQ23  
PD2  
NC  
No Connect  
A2  
A9  
PD3  
A3  
RAS3  
RAS2  
DQ15  
NC  
PD4  
A4  
PD5  
MODULE OPTIONS  
A5  
PD6  
A6  
Vss  
Leadless SODIM: AK5322048N  
Presence Detect -  
Access  
Time  
PD0  
NC  
NC  
PD1  
PD2  
Vss  
Vss  
PD3  
PD4  
NC  
PD5  
PD6  
NC  
NC  
-60  
-70  
Vss  
Vss  
Vss  
Vss  
NC  
NC  
Vss  

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