HI-8448PQT datasheet(3/6 Pages) HOLTIC

Part #	HI-8448PQT

Description	Quad / Octal ARINC 429 Line Receivers

Download	6 Pages

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Manufacturer	HOLTIC [Holt Integrated Circuits]

Direct Link	http://www.holtic.com

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3 / 6 page

HI-8444, HI-8445, HI-8448

PIN DESCRIPTIONS (HI-8448)

SYMBOL

FUNCTION

RECEIVER SET

DESCRIPTION

1

IN2 BX

ARINC input

X

2

IN2 AY

ARINC input

Y

3

IN2 BY

4

N/C

Not connected

5

TESTA(X)

Logic input

X

Test input

6

TESTB(X)

7

TESTA(Y)

9

IN3 AX

10

IN3 BX

11

IN3 AY

12

IN3 BY

13

IN4 AX

14

IN4 BX

15

IN4 AY

Y

16

IN4 BY

Y

Receiver 2 negative input

Receiver 2 positive input

ARINC input

Y

Receiver 2 negative input

Logic input

X

Test input

Logic input

Y

Test input

8

TESTB(Y)

Logic input

Y

Test input

ARINC input

X

Receiver 3 positive input

ARINC input

X

Receiver 3 negative input

ARINC input

Y

Receiver 3 positive input

ARINC input

Y

Receiver 3 negative input

ARINC input

X

Receiver 4 positive input

ARINC input

X

Receiver 4 negative input

ARINC input

Receiver 4 positive input

ARINC input

Receiver 4 negative input

17

N/C

Not connected

18

OUT4 BY

Logic output

Y

Receiver 4 "ZERO" output

19

OUT4 AY

Logic output

Y

Receiver 4 "ONE" output

20

OUT4 BX

Logic output

X

Receiver 4 "ZERO" output

21

OUT4 AX

Logic output

X

Receiver 4 "ONE" output

22

OUT3 BY

Logic output

Y

Receiver 3 "ZERO" output

23

OUT3 AY

Logic output

Y

Receiver 3 "ONE" output

24

OUT3 BX

Logic output

X

Receiver 3 "ZERO" output

25

OUT3 AX

Logic output

X

Receiver 3 "ONE" output

26

N/C

Not connected

27

VSS

Power

Ground supply

28

N/C

Not connected

29

VDD

Power

Positive supply voltage 3.3V or 5.0 V

30

N/C

Not connected

31

OUT2 BY

Logic output

Y

Receiver 2 "ZERO" output

32

OUT2 AY

Logic output

Y

Receiver 2 "ONE" output

33

OUT2 BX

Logic output

X

Receiver 2 "ZERO" output

34

OUT2 AX

Logic output

X

Receiver 2 "ONE" output

35

OUT1 BY

Logic output

Y

Receiver 1 "ZERO" output

36

OUT1 AY

Logic output

Y

Receiver 1 "ONE" output

37

OUT1 BX

Logic output

X

Receiver 1 "ZERO" output

38

OUT1 AX

Logic output

X

Receiver 1 "ONE" output

39

N/C

Not connected

40

IN1 AX

ARINC input

X

Receiver 1 positive input

41

IN1 BX

ARINC input

X

Receiver 1 negative input

42

IN1 AY

ARINC input

Y

Receiver 1 positive input

43

IN1 BY

ARINC input

Y

Receiver 1 negative input

44

IN2 AX

ARINC input

X

Receiver 2 positive input

HOLT INTEGRATED CIRCUITS

3

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