74VHCT245AM データシートの表示（PDF） - STMicroelectronics

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74VHCT245AM

OCTAL BUS TRANSCEIVER (3-STATE)

STMicroelectronics 

74VHCT245A

INPUT/OUTPUT EQUIVALENT CIRCUIT

INPUT EQUIVALENT CIRCUIT

TRUTH TABLE

G

L

L

H

X:”H” or ”L”

Z: High impedance

INPUT

DIR

L

H

X

PIN DESCRIPTION

PIN No

1

2, 3, 4, 5,

6, 7, 8, 9

18, 17, 16,

15, 14, 13,

12, 11

19

10

20

S YM BO L

DIR

A1 to A8

NAME AND FUNCTION

Directional Control

Data Inputs/Outputs

B1 to B8 Data Inputs/Outputs

G

GND

VCC

Output Enable Input

Ground (0V)

Positive Supply Voltage

F UN CTI ON

A BUS

B BUS

OUTPUT

INPUT

INPUT

OUTPUT

Z

Z

OUT PUT

A=B

B=A

Z

2/9

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