W986408CH Datasheet, PDF (20/44 Pages) Winbond – 2M x 8BIT x 4 BANKS SDRAM

W986408CH
2M x 8 bit x 4 Banks SDRAM
Interleaved Bank Read (Burst Length = 4, CAS Latency = 3, Autoprecharge)
(CLK = 100 MHz)
CLK
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
tRC
tRP
tRAS
tRC
tRC
tRAS
tRP
tRP
tRAS
WE
BS0
BS1
tRCD
A10 ^RAa
tRCD
RBb
tRCD
RAc
tRCD
RBd
RAe
A0-A9,
A11
RAa
DQM
CKE
DQ
CAw RBb
CBx
RAc
CAy
RBd
CBz
RAe
tAC
aw0 aw1 aw2 aw3
tAC
tAC
bx0 bx1 bx2 bx3
cy0 cy1 cy2 cy3
tAC
dz0
tRRD
tRRD
tRRD
tRRD
Bank #0
Bank #1
Bank #2
Bank #3
Active
Idle
Read
Active
AP*
Active
Read
* AP is the internal precharge start timing
Read
AP*
AP*
Active
Read
Active
Revision 1.0
- 20 -
Publication Release Date: March, 1999