PI74FCT16374/162374/162H374T

16-BIT REGISTERS (3-STATE)

2

PS2034A

03/28/01

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1OE

1O0

1O1

GND

1O2

1O3

VCC

1O4

1O5

GND

1O6

1O7

2O0

2O1

GND

2O2

2O3

VCC

2O4

2O5

GND

2O6

2O7

2OE

1

2

3

4

5

6

7

8

9

48

10

47

11

46

12

45

13

44

14

43

15

42

16

41

17

40

18

39

19

38

20

37

21

36

22

35

23

34

24

33

32

31

30

29

28

27

26

25

1CLK

1D0

1D1

GND

1D2

1D3

VCC

1D4

1D5

GND

1D6

1D7

2D0

2D1

GND

2D2

2D3

VCC

2D4

2D5

GND

2D6

2D7

2CLK

Product Pin Description

Pin Name

Description

xOE

3-State Output Enable Inputs (Active LOW)

xCLK

Clock Inputs

xDx

xOx

3-State Outputs

GND

Ground

Power

Inputs

Outputs

Function

X

X

OE

X

High-Z

X

L

H

Z

XHH

Z

Load Register

L

↑↑↑↑↑

LL

H

↑↑↑↑↑

LH

L

↑↑↑↑↑

HZ

H

↑↑↑↑↑

HZ

Truth Table

(1)

Note:

1.

H = High Voltage Level

L = Low Voltage Level

X = Don’t Care

Z = High Impedance

↑↑↑↑↑ = LOW-to-HIGH transition

Note:

1. For the PI74FCT162H374T, these pins have “Bus

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

Product Pin Configuration

48-PIN

V48

A48