VG4616321B View Datasheet(PDF) - Vanguard International Semiconductor

Part Name

Description

MFG CO.

VG4616321B

262,144x32x2-Bit CMOS Synchronous Graphic RAM

Vanguard International Semiconductor  

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VIS

Preliminary

VG4616321B/VG4616322B

262,144x32x2-Bit

CMOS Synchronous Graphic RAM

Figure 25. Full Page Random Column Write (Burst Length = Full Page, CAS Latency = 2)

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

RBx

RBw

A0 ~ A8

DQM

DQ

RAx

RBx CAx CBx CAy

CBy

CAz

CBz

RBw

tWR

tRP

tRRD

tRCD

DAx0 DBx0 DAy0 DAy1 DBy0 DBy1 DAz0 DAz1 DAz2 DBz0 DBz1 DBz2

Activate

Command

Bank A

Activate

Command

Bank B

Write

Command

Bank B

Write

Command

Bank B

Write

Command

Bank A

Write

Command

Bank A

Write

Command

Bank A

Write

Command

Bank B

Precharge

Command Bank B

(Precharge Termination)

Write Data

is masked

Activate

Command

Bank B

Document:1G5-0145

Rev.1

Page 77

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