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VDD8608A8A 参数 Datasheet PDF下载

VDD8608A8A图片预览
型号: VDD8608A8A
PDF下载: 下载PDF文件 查看货源
内容描述: 双倍数据速率SDRAM [DOUBLE DATA RATE SDRAM]
分类和应用: 动态存储器双倍数据速率
文件页数/大小: 9 页 / 503 K
品牌: ADATA [ ADATA Technology Co., Ltd. ]
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A-Data  
ADD8616A8A  
4M x 16 Bit x 4 Banks  
Double Data Rate SDRAM  
General Description  
Features  
2.5V for VDDQ power supply  
SSTL_2 interface  
The ADD8616A8A are four-bank Double Data  
Rate(DDR) Synchronous DRAMs organized as  
4,194,304 words x 16 bits x 4 banks,  
Synchronous design allows precise cycle control  
with the use of system clock I/O transactions are  
possible on every clock cycle.  
MRS Cycle with address key programs  
-CAS Latency (2, 2.5)  
-Burst Length (2,4 &8)  
-Burst Type (sequential & Interleave)  
4 banks operation  
Differential clock input (CK, /CK) operation  
Double data rate interface  
Auto & Self refresh  
Data outputs occur at both rising edges of CK and  
/CK.  
Range of operating frequencies, programmable  
burst length and programmable latencies allow the  
same device to be useful for a variety of high  
bandwidth high performance memory system  
applications  
8192 refresh cycle  
DQM for masking  
Package:66-pins 400 mil TSOP-Type II  
Ordering Information.  
Part No.  
Frequency  
Interface  
SSTL_2  
Package  
VDD8608A8A-75BA  
ADD8616A8A-75B  
133Mhz(7.5ns /CL=2)  
133Mhz(7.5ns /CL=2.5)  
400mil 66pin TSOPII  
Pin Assignment  
VDD  
V
S S  
6
6
1
2
3
4
5
6
7
8
9
DQ  
0
DDQ  
DQ7  
65  
6
V
V
S SQ  
4
3
NC  
DQ1  
NC  
DQ6  
6
62  
1
V
S S Q  
V
DDQ  
6
NC  
DQ2  
NC  
DQ5  
60  
59  
58  
V
DDQ  
V
S SQ  
NC  
DQ3  
NC  
DQ4  
5
10  
11  
12  
13  
14  
15  
16  
7
56  
55  
54  
V
S S Q  
V
DDQ  
NC  
NC  
V
NC  
N C  
3
5
52  
51  
50  
DDQ  
V
S S Q  
NC  
NC  
VDD  
DQS  
N C  
VR E F  
VS S  
1
7
18  
19  
20  
9
8
4
4
NC  
47  
46  
45  
44  
DM  
CK  
CK  
CKE  
NC  
NC  
A11  
A9  
NC  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
WE  
CAS  
RAS  
CS  
NC  
43  
2
4
BA0  
41  
40  
39  
3 8  
37  
36  
35  
BA1  
A10/AP  
A0  
A8  
A7  
A 6  
A5  
A1  
A2  
A3  
A4  
VS S  
3
4
VDD  
66-pin plastic TSOP II 400 mil  
Rev 2 April, 2002  
2