PI74FCT16827T/162827/162H827T

20-BIT BUFFERS

2

PS2041A 03/11/96

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Pin Name

Description

xOEx

Output Enable Inputs (Active LOW)

Data Inputs

xYx

3-State Outputs

Note: 1. For the PI74FCT162H827T, these pins have “Bus

Hold.” All other pins are standard, outputs, or I/Os.

Product Pin Description

Product Pin Configuration

Inputs

Outputs

xAx

xYx

LLL

L

LL

H

H

HXX

Z

XHX

Z

Truth Table

(1)

1.

H = High Voltage Level

L = Low Voltage Level

X = Don't Care

Z = High Impedance

1

1

1

2

1

3

GND

4

1

5

1

6

7

1

8

1

9

1

10

GND

11

1

12

1

13

1

14

2

15

2

16

2

17

GND

18

2

19

2

20

2

21

22

2

23

2

24

1

56

1

55

1

54

GND

53

1

52

1

51

50

1

49

1

48

1

47

GND

46

1

45

1

44

1

43

2

42

2

41

2

40

GND

39

2

38

2

37

2

36

35

2

34

2

33

GND

25

2

26

2

27

2

28

GND

32

2

31

2

30

2

29

56-PIN

V56

A56