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 8. Power Down Mode and Clock Mask

(Burst Length = 4, CAS Burst Length = 4, CAS Latency = 2)

CLK

CKE

CS

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

tIS

tPDE

Valid

RAS

CAS

WE

DSF

BS

A9

RAx

A0 ~ A8

RAx

CAx

DQM

DQ

Hi-Z

Ax0 Ax1

tHZ

Ax2

Ax3

ACTIVE

Activate

Command

Bank A

STANDBY

Read

Command

Bank A

Power Down Power Down

Mode Entry Mode Exit

Clock Mask Clock Mask

Start

End

PRECHARGE

Precharge STANDBY

Command

Bank A

Power Down

Mode Entry

Power Down

Mode Exit

Any

Command

Document:1G5-0145

Rev.1

Page 38

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