W981208BH Datasheet, PDF (25/41 Pages) Winbond – 4M x 4 BANKS x 8 BIT SDRAM

Operating Timing Example, continued
Page Mode Read (Burst Length = 4, CAS Latency = 3)
W981208BH
CLK
CS
RAS
(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
tCCD
tRAS
tCCD
tRAS
tCCD
tRP
tRP
CAS
WE
BS0
BS1
tRCD
tRCD
A10
RAa
RBb
A0-A9,
RAa
A11
DQM
CAI RBb
CBx
CAy
CAm
CBz
CKE
DQ
tAC
tAC
tAC
tAC
tAC
a0
a1
a2
a3
bx0 bx1 Ay0
Ay1 Ay2 am0 am1 am2 bz0 bz1 bz2
bz3
tRRD
Bank #0 Active
Bank #1
Bank #2
Idle
Bank #3
Read
Active
Read
Read
Read
Read
Precharge
AP*
* AP is the internal precharge start timing
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Publication Release Date: October 2000
Revision A1