参数资料
型号: W987Y6CBG80
厂商: WINBOND ELECTRONICS CORP
元件分类: DRAM
英文描述: 8M X 16 SYNCHRONOUS DRAM, 6 ns, PBGA54
封装: 8 X 9 MM, 1.20 MM HEIGHT, FBGA-54
文件页数: 36/46页
文件大小: 1634K
代理商: W987Y6CBG80
Preliminary W987Y6CB
Publication Release Date: May 21, 2002
- 41 -
Revision A1
Operating Timing Example, contined
Timing Chart of Burst Stop Cycle (Burst Stop Command)
Read
BST
0
11
10
9
8
7
6
5
4
3
2
1
DQ
Q0
Q1
Q2
Q3
BST
( a ) CAS latency =2
Command
( b )CAS latency = 3
(1) Read cycle
Q4
(2) Write cycle
Command
Read
Command
Q0
Q1
Q2
Q3
Q4
Q0
Q1
Q2
Q3
Q4
DQ
Write
BST
Note:
represents the Burst stop command
BST
Timing Chart of Burst Stop Cycle (Precharge Command)
In the case of Burst Lenght = 8
Read
PRCG
0
11
10
9
8
7
6
5
4
3
2
1
Q0
Q1
Q2
Q3
Q0
Q1
Q2
Q3
Read
PRCG
Q4
( a )CAS latency =2
Command
( b )CAS latency = 3
Command
DQ
DQ
DQ
( b )CAS latency = 3
Command
(1) Read cycle
(2) Write cycle
Write
PRCG
( a ) CAS latency =2
Command
DQM
tWR
D0
D1
D2
D3
D4
DQ
D0
D1
D2
D3
D4
DQ
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