W981208BH Datasheet, PDF (28/41 Pages) Winbond – 4M x 4 BANKS x 8 BIT SDRAM

W981208BH
Operating Timing Example, continued
Auto Precharge Write (Burst Length = 4)
CLK
(CLK = 100 MHz)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 16
17
18
19
20
21
22
23
CS
RAS
CAS
tRC
tRAS
tRP
tRC
tRAS
tRP
WE
BS0
BS1
tRCD
tRCD
A10
RAa
RAb
RAc
A0-A9,
RAa
CAw
RAb
CAx
RAc
A11
DQM
CKE
DQ
aw0 aw1 aw2 aw3
bx0
bx1 bx2 bx3
Bank #0 Active
Bank #1
Bank #2
Idle
Bank #3
Write
AP*
Active
Write
* AP is the internal precharge start timing
AP*
Active
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