N74620N データシートの表示（PDF） - Philips Electronics

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N74620N

Octal bus transceiver, inverting (3tate)

Philips Electronics 

Philips Semiconductors

Transceivers

Product specification

74F620/74F623

LOGIC DIAGRAM – 74F620

19

OEBA

OEAB 1

A0 2

A1 3

A2 4

A3 5

A4 6

A5 7

A6 8

A7 9

VCC = Pin 20

GND = Pin 10

18 B0

17 B1

16

B2

15 B3

14 B4

13

B5

12 B6

11 B7

SF01129

FUNCTION TABLE

INPUTS

OPERATING MODES

OEBA OEAB

74F620

74F623

L

L

B data to A bus

B data to A bus

H

H

A data to B bus

A data to B bus

H

L

Z

Z

B data to A bus

L

H

A data to B bus

H = High voltage level

L = Low voltage level

X = Don’t care

Z = High impedance “off” state

B data to A bus

A data to B bus

LOGIC DIAGRAM – 74F623

19

OEBA

OEAB 1

A0 2

A1 3

A2 4

A3 5

A4 6

A5 7

A6 8

A7 9

VCC = Pin 20

GND = Pin 10

18 B0

17 B1

16

B2

15 B3

14 B4

13

B5

12 B6

11 B7

SF01130

1990 Apr 6

4

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