W982516BH Datasheet, PDF (28/43 Pages) Winbond – 4M X 4 BANKS X 16 BIT SDRAM

W982516BH
Operating Timing Example, continued
Page Mode Read/Write (Burst Length = 8, CAS Latency = 3)
CLK
CS
RAS
CAS
(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
tRAS
tRP
WE
BS0
BS1
A10
tRCD
RAa
A0-A9,
RAa
A11,12
CAx
CAy
DQM
CKE
DQ
Bank #0
Bank #1
Bank #2
Bank #3
Active
Idle
tAC
ax0 ax1 ax2 ax3 ax4 ax5
QQ Q Q Q Q
tWR
ay0 ay1 ay2 ay3 ay4
DD D D D
Read
Write
Precharge
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