VG4616321B View Datasheet(PDF) - Vanguard International Semiconductor
Part Name
Description
MFG CO.
'VG4616321B' PDF : 82 Pages View PDF
VIS
Preliminary
Figure 14.2 Interleaving Column Read Cycle
(Burst Length = 4, CAS Latency = 2)
VG4616321B/VG4616322B
262,144x32x2-Bit
CMOS Synchronous Graphic RAM
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
t
CK2
CS
RAS
CAS
WE
DSF
BS
A9
RAx
RBw
A0 ~ A8
DQM
RAx
CAx
RBw
CBw
CBx
CBy
CAy
CBz
t RCD
tAC2
DQ
Hi-Z
Ax0 Ax1 Ax2 Ax3 Bw0 Bw1 Bx0 Bx1 By0 By1 Ay0 Ay1 Bz0 Bz1 Bz2 Bz3
Activate
Command
Bank A
Read
Command
Bank A
Activate
Read
Command Command
Bank B
Bank B
Read
Command
Bank B
Read
Command
Bank B
Read
Command
Bank A
Read
Command
Bank B
Precharge
Command
Bank A
Precharge
Command
Bank B
Document:1G5-0145
Rev.1
Page 55
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