Philips Semiconductors

Product specification

74F545

Octal bidirectional transceiver (with 3-State inputs/outputs)

1990 Mar 01

3

LOGIC SYMBOL

23

4

GND = Pin 10

18

17

16

15

14

13

12

9

11

SF01033

T/R

B0

B1

B4

B5

B6

B7

OE

A0

A1

A4

A5

A6

A7

B2

B3

A3

A2

56

7

8

1

19

LOGIC SYMBOL (IEEE/IEC)

1

2

3

4

5

6

7

8

19

18

17

16

15

14

13

12

G3

3EN1

3EN2

SF01034

2

1

9

11

LOGIC DIAGRAM

VCC =

Pin 20

GND =

Pin 10

SF01035

OE

T/R

9

11

23

4

18

17

16

15

14

13

12

B0

B1

B4

B5

B6

B7

A0

A1

A4

A5

A6

A7

B2

B3

A3

A2

56

7

8

1

19

FUNCTION TABLE

INPUTS

OUTPUTS

OE

T/R

L

L

Bus B data to Bus A

L

H

Bus A data to Bus B

H

X

Z

H = High voltage level

L = Low voltage level

X = Don’t care

Z = High impedance “off” state