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 7.2 Clock Suspension During Burst Write (Using CKE)

(Burst Length = 4, CAS Latency = 2)

CLK

CKE

CS

RAS

CAS

WE

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

DSF

BS

A9

A0 ~ A8

RAx

RAx

CAx

DQM

DQ

Hi-Z

DAx0

DAx1

DAx2

DAx3

Activate

Command

Clock Suspend

1 Cycle Clock Suspend

Bank A

2 Cycles

Write

Command

Bank A

Clock Suspend

3 Cycles

Note: CKE to CLK disable/enable = 1 clock

Document:1G5-0145

Rev.1

Page 36

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