W78C51D 查看數據表（PDF） - Winbond

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W78C51D

8-BIT MICROCONTROLLER

Winbond 

Preliminary W78C51D

Timing Waveforms, continued

Data Write Cycle

XTAL1

ALE

PSEN

PORT 2

PORT 0

WR

S4 S5 S6 S1 S2 S3 S4 S5 S6 S1 S2 S3

A0-A7

A8-A15

DATA OUT

TDAD

T DAW

T DWR

T DWD

Port Access Cycle

XTAL1

ALE

PORT

INPUT

SAMPLE

S5

TPDS

TPDH

S6

S1

T PDA

DATA OUT

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