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 26.1. Precharge Termination of a Burst (Burst Length = Full Page, CAS Latency = 1)

CLK

CKE

CS

RAS

CAS

WE

DSF

BS

A9

A0 ~ A8

DQM

DQ

T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22

t

CK1

RAx

RAy

RAz

RAx CAx

RAy CAy

tWR tRP

RAz CAz

tRP Precharge

Termination of

a Read Burst

DAx0 DAx1 DAx2 DAx3 DAx4

Ay0 Ay1 Ay2

DAz0 DAz1 DAz2 DAz3 DAz4 DAz5 DAz6 DAz7

Activate

Command

Bank A

Precharge Termination Precharge

of a Write Burst.

Write data is masked.

Command

Bank A

Read

command

Bank A

Write

Command

Bank A

Activate

Command

Bank A

Precharge Write

Command

Command

Bank A

Bank A

Activate

Command

Bank A

Document:1G5-0145

Rev.1

Page 78

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