VG4616321B View Datasheet(PDF) - Vanguard International Semiconductor
Part Name
Description
MFG CO.
'VG4616321B' PDF : 82 Pages View PDF
VIS
Preliminary
VG4616321B/VG4616322B
262,144x32x2-Bit
CMOS Synchronous Graphic RAM
Figure 17.3. Auto Precharge after Write Burst (Burst Length = 4, CAS Latency = 3)
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
CK3
CS
RAS
CAS
WE
DSF
BS
A9
RAx
RBx
RBy
A0 ~ A8
RAx
CAx RBx
CBx
CAy
RBy
CBy
DQM
DQ
Hi-Z
Activate
Command
Bank A
DAx0 DAx1 DAx2 DAx3 DBx0 DBx1 DBx2 DBx3 DAy0 DAy1 DAy2 DAy3
DBy0 DBy1 DBy2 DBy3
Activate
Command
Bank B
Write
Command
Bank A
Write with
Auto Precharge
Command
Bank B
Write with
Auto Precharge
Command
Bank A
Activate
Command
Bank B
Write with
Auto Precharge
Command
Bank B
Document:1G5-0145
Rev.1
Page 65
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