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VG4616321B View Datasheet(PDF) - Vanguard International Semiconductor

Part Name
Description
MFG CO.
VG4616321B
VIS
Vanguard International Semiconductor  VIS
'VG4616321B' PDF : 82 Pages View PDF
VIS
Preliminary
VG4616321B/VG4616322B
262,144x32x2-Bit
CMOS Synchronous Graphic RAM
Figure 21. Burst Read and Single Write Operation (Burst Length = 4, CAS Latency = 2)
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
CLK High
CKE
t
CK2
CS
RAS
CAS
WE
DSF
BS
A9
RAx
A0 ~ A8
RAx
CAx
CAw
CAx
CAy
CAz
DQM0
DQM1~3
DQ0 - DQ7 Hi-Z
Ax0 Ax1 Ax2 Ax3
DQw0
Ay0 Ay1
Ay3
Az0
Hi-Z
DQ8 - DQ31
Ax0 Ax1 Ax2 Ax3
DQw0
DQx0
Ay0
Ay2 Ay3
Az0
Activate Read
Command Command
Bank A Bank A
Single Write
Command
Bank A
Read
Command
Bank A
Single Write
Command
Bank A
Lower Byte
is masked
Upptr 3 Bytes
is masked
Single Write
Command
Bank A
Lower Byte
is masked
Document:1G5-0145
Rev.1
Page 73
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