8405201QA 데이터 시트보기 (PDF) - Intersil

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8405201QA

CMOS 16-Bit Microprocessor

Intersil 

80C86

CLK

ALE

S2-S0

(4 + NWAIT) = TCY

(4 + NWAIT) = TCY

T1

T2

T3

TWAIT

T4

T1

T2

T3

TWAIT T4

GOES INACTIVE IN THE STATE

JUST PRIOR TO T4

ADDR/

STATUS

ADDR/DATA

RD, INTA

READY

DT/R

DEN

WR

BHE,

A19-A16

A15-A0

S7-S3

BUS RESERVED

FOR DATA IN

D15-D0

VALID

BHE

A19-A16

S7-S3

A15-A0

DATA OUT (D15-D0)

READY

WAIT

READY

WAIT

MEMORY ACCESS TIME

FIGURE 3. BASIC SYSTEM TIMING

3-151

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