Rainbow Electronics W982516CH - Manual (Page 35)

W982516CH
Publication Release Date: Mar 2003
- 35 - Revision A1
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
t W R
t W R
t W R
t W R
t W R
t W R
t W R
t W R
12
Act