VIS
Preliminary
VG4616321B/VG4616322B
262,144x32x2-Bit
CMOS Synchronous Graphic RAM
Figure 17.1 Auto Precharge after Write Burst (Burst Length = 4, CAS Latency = 1)
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
CLK
CKE
High
t
CK1
CS
RAS
CAS
WE
DSF
BS
A9
RAx
RBx
RBy
RAz
A0 ~ A8
RAx CAx
RBx
CBx
CAy
RBy
CBy
RAz CAz
DQM
DQ
Hi-Z
DAx0 DAx1 DAx2 DAx3 DBx0 DBx1 DBx2 DBx3 DAy0 DAy1 DAy2 DAy3 DBy0 DBy1 DBy2 DBy3
DAz0 DAz1 DAz2 DAz3
Activate
Command
Bank A
Activate
Command
Write with
Auto Precharge
Command
Bank B
Bank B
Write
Command
Bank A
Activate
Command
Bank B
Write with
Auto Precharge
Command
Bank A
Write with
Auto Precharge
Command
Bank B
Activate
Command
Bank A
Write with
Auto Precharge
Command
Bank A
Document:1G5-0145
Rev.1
Page 63