W986408CH Datasheet, PDF (25/44 Pages) Winbond – 2M x 8BIT x 4 BANKS SDRAM

W986408CH
2M x 8 bit x 4 Banks SDRAM
Page Mode 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
tCCD
tCCD
tCCD
CS
RAS
tRAS
tRAS
tRP
tRP
CAS
WE
BS0
BS1
tRCD
tRCD
A10
RAa
RBb
A0-A9, _RAa
A11
CAI RBb
CBx
CAy
CAm
CBz
DQM
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
Revision 1.0
- 25 -
Publication Release Date: March, 1999