HD74HC651 データシートの表示（PDF） - Hitachi -> Renesas Electronics

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HD74HC651

Octal Bus Transceivers/Registers (with inverted 3-state outputs) Octal Bus Transceivers/Registers (with 3-state outputs)

Hitachi -> Renesas Electronics 

HD74HC651/HD74HC652

Function Table

Clock AB

Select AB

Enable GAB

Clock BA

Select BA

Enable GBA

Real-Time Transfer Real-Time Transfer

Bus B to Bus A

Bus A to Bus B

Storage

X

X

X

L

X

L

H

L

X

X

L

X

X

L

H

H

Transfer Stored

Data to A and/or B

L or H

H

H

L or H

H

L

Real-time transfer

Bus B to Bus A

Real-time transfer

Bus A to Bus B

2

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