MC14503BF View Datasheet(PDF) - ON Semiconductor

Part Name

Description

View to exact match

MC14503BF

Hex Non−Inverting 3−State Buffer

ON Semiconductor 

MC14503B

PIN ASSIGNMENT

DIS A 1

IN 1 2

OUT 1 3

IN 2 4

OUT 2 5

IN 3 6

OUT 3 7

VSS 8

16 VDD

15 DIS B

14 IN 6

13 OUT 6

12 IN 5

11 OUT 5

10 IN 4

9 OUT 4

TRUTH TABLE

Appropriate

Disable

Inn

Input

Outn

0

0

0

1

0

1

X

1

High

Impedance

X = Don’t Care

LOGIC DIAGRAM

DISABLE B 15

IN 5 12

IN 6 14

IN 1 2

IN 2 4

IN 3 6

IN 4 10

DISABLE A 1

11 OUT 5

13 OUT 6

3 OUT 1

5 OUT 2

7 OUT 3

9 OUT 4

VDD = PIN 16

VSS = PIN 8

CIRCUIT DIAGRAM

ONE OF TWO/FOUR BUFFERS

VDD

* INn

* DISABLE

* INPUT

TO OTHER BUFFERS

* Diode protection on all inputs (not shown)

OUTn

VSS

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2

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