Philips Semiconductors

Product specification

74ABT652A

Octal transceiver/register, non-inverting (3-State)

1995 Apr 19

3

The following examples demonstrate the four fundamental

bus-management functions that can be performed with the

74ABT652A.

The select pins determine whether data is stored or transferred

through the device in real time.

The output enable pins determine the direction of the data flow.

REAL TIME BUS TRANSFER

BUS B TO BUS A

OEAB OEBA CPAB CPBA SAB SBA

L

L

X

X

X

L

REAL TIME BUS TRANSFER

BUS A TO BUS B

OEAB OEBA CPAB CPBA SAB SBA

H

H

X

X

L

X

STORAGE FROM

A, B, OR A AND B

OEAB OEBA CPAB CPBA SAB SBA

X

H

↑

X

X

X

L

X

X

↑

X

X

L

H

↑

↑

X

X

TRANSFER STORED DATA

TO A OR B

OEAB OEBA CPAB CPBA SAB SBA

H

L

H | L H | L

H

H

SA00097

A

B

A

B

A

B

A

B