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 16.1. Auto Precharge after Read Burst (Burst Length = 4, CAS Latency = 1)
CLK
CKE
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
tCK1
High
CS
RAS
CAS
WE
DSF
BS
A9
RAx
RBx
RBy
RBz
A0~A8
RAx CAx
CAx CBx
CAy RBy
CBy
RBz CBz
DQM
DQ
Hi-Z
Ax0 Ax1 Ax2 Ax3 Bx0 Bx1 Bx2 Bx3 Ay0 Ay1 Ay2 Ay3 By0 By1 By2 By3
Bz0 Bz1 Bz2 Bz3
Activate
Command
Bank A
Read
Command
Bank A
Activate
Command
Bank B
Read with
Auto Precharge
Command
Bank B
Activate
Command
Bank B
Read with
Auto Precharge
Command
Bank A
Read with
Auto Precharge
Command
Bank B
Activate
Command
Bank B
Read with
Auto Precharge
Command
Bank B
Document:1G5-0145
Rev.1
Page 60
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