W9816G6JH Datasheet, PDF (36/42 Pages) Winbond – 512K X 2 BANKS X 16 BITS SDRAM

W9816G6JH
11.16 Auto-precharge Timing (Write Cycle)
0
1
2
3
4
5
6
7
8
9
CLK
(1) C A S L a te ncy = 2
(a ) b u rs t le n g th = 1
Command
W rite
tW R
DQ
D0
(b ) b u rs t le n g th = 2
Command
W rite
DQ
D0
D1
(c) b u rs t le n g th = 4
Command
W rite
DQ
D0
D1
(d ) b u rs t le n g th = 8
Command
W rite
DQ
(2) C A S L a te ncy = 3
(a ) b u rs t le n g th = 1
Command
D0
W rite
DQ
(b ) b u rs t le n g th = 2
Command
D0
W rite
D1
tW R
DQ
D0
D1
(c) b u rs t le n g th = 4
Command
W rite
DQ
D0
D1
(d ) b u rs t le n g th = 8
Command
W rite
DQ
D0
D1
AP
tW R
D2
D2
AP
tW R
D2
D2
A ct
tR P
AP
A ct
tR P
D3
tW R
AP
D3
D4
D5
A ct
tR P
AP
tR P
D3
tW R
AP
D3
D4
D5
A ct
tR P
D6
D7
A ct
tR P
D6
D7
tW R
AP
A ct
tW R
AP
10
11
12
A ct
tR P
A ct
tR P
N o te )
W rite
re p re s e n ts th e W rite w ith A u to p re c h a rg e c o m m a n d .
AP
re p re s e n ts th e s ta rt o f in te rn a l p re c h a rin g .
A ct
re p re se n ts th e B a n k A c tive co m m a n d .
W h e n th e /a u to p re c h a rg e c o m m a n d is a s s e rte d ,th e p e rio d fro m B a n k A c tiv a te
c o m m a n d to th e s ta rt o f in te rm a l p re c g a rg in g m u s t b e a t le a s t tR A S (m in ).
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Publication Release Date: Jun. 24, 2014
Revision: A01