Autoprecharge timing (write cycle) – Rainbow Electronics W9825G6CH User Manual
Page 35
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W9825G6CH
Publication Release Date: Oct. 2004
- 35 - Revision A2
Operating Timing Example, continued
Autoprecharge Timing (Write Cycle)
Act
0
1
3
2
(1) CAS Latency = 2
(a) burst length = 1
DQ
4
5
7
6
8
9
11
10
Write
D0
Act
AP
Command
(b) burst length = 2
DQ
Write
D0
Act
AP
Command
tRP
tRP
D1
(c) burst length = 4
DQ
Write
D0
Act
AP
Command
tRP
D1
(d) burst length = 8
DQ
Write
D0
Act
AP
Command
tRP
D1
D2
D3
D2
D3
D4
D5
D6
D7
(2) CAS Latency = 3
(a) burst length = 1
DQ
Write
D0
Act
AP
Command
(b) burst length = 2
DQ
Write
D0
Act
AP
Command
tRP
tRP
D1
(c) burst length = 4
DQ
Write
D0
Act
AP
Command
tRP
D1
(d) burst length = 8
DQ
Write
D0
AP
Command
tRP
D1
D2
D3
D2
D3
D4
D5
D6
D7
tWR
tWR
tWR
tWR
tWR
tWR
tWR
tWR
12
Act
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