W982516BH Datasheet, PDF (29/43 Pages) Winbond – 4M X 4 BANKS X 16 BIT SDRAM

W982516BH
Operating Timing Example, continued
Auto Precharge Read (Burst Length = 4, CAS Latency = 3)
(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
CLK
CS
RAS
CAS
tRC
tRAS
tRP
tRC
tRAS
tRP
WE
BS0
BS1
A10
tRCD
RAa
tRCD
RAb
A0-A9,
RAa
A11,12
DQM
CKE
DQ
CAw
RAb
tAC
aw0 aw1 aw2 aw3
CAx
tAC
bx0
bx1
bx2 bx3
Bank #0 Active
Read
AP*
Active
Read
AP*
Bank #1
Bank #2
Idle
Bank #3
* AP is the internal precharge start timing
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Publication Release Date: December 13, 2001
Revision A2