PI74FCT861T/863T/864T

BUS TRANSCEIVERS

2

PS2026A 03/11/96

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Pin Name

Description

Receive Inputs/Outputs

Transmit Inputs/Outputs

Output Enable Receive Mode

Output Enable Transmit Mode

GND

Ground

Power

Product Pin Description

PI74FCT861T 10-Bit Product Configuration

Inputs

Outputs

Function

High-Z

H

H

X

X

Z

Z

Transmitting

L

H

L

N/A

N/A

L

Transmitting

L

H

H

N/A

N/A

H

Receiving

H

L

N/A

L

L

N/A

Receiving

H

L

N/A

H

H

N/A

PI74FCT861/863T (non-inverting) Truth Table

(1)

1.

H = High Voltage Level

L = Low Voltage Level

X = Don't Care

NA = Not Applicable

Z = High Impedance

PI74FCT863/864T 9-Bit Product Configuration

Inputs

Outputs

Function

High-Z

H

H

X

X

Z

Z

Transmitting

L

H

L

N/A

N/A

H

Transmitting

L

H

H

N/A

N/A

L

Receiving

H

L

N/A

L

H

N/A

Receiving

H

L

N/A

H

L

N/A

1.

H = High Voltage Level

L = Low Voltage Level

X = Don't Care

NA = Not Applicable

Z = High Impedance

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

OER

GND

Vcc

OET

24-PIN

P24

Q24

R24

S24

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

GND

Vcc

24-PIN

P24

Q24

R24

S24