PI74AVC16821 データシートの表示（PDF） - Pericom Semiconductor

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PI74AVC16821

2.5V 20-Bit Bus Interface Flip-Flop with 3-State Outputs

Pericom Semiconductor 

PI74AVC+16821

2.5V 20-Bit Bus Interface

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Pin Description

Pin Name

Description

OE

Output Enable Input (Active LOW)

CLK

Clock Input (Active HIGH)

Dx

Data Inputs

Qx

3-State Outputs

GND

Ground

VCC

Power

Pin Configuration

1QE 1

56

1Q1 2

55

1Q2 3

54

GND 4

53

1Q3 5

52

1Q4 6

51

VCC 7

50

1Q5 8

49

1Q6 9

48

1Q7 10

47

GND 11

46

1Q8 12

45

1Q9

13

56-Pin

A, K

44

1Q10 14

43

2Q1 15

42

2Q2 16

41

2Q3 17

40

GND 18

39

2Q4 19

38

2Q5 20

37

2Q6 21

36

VCC 22

35

2Q7 23

34

2Q8 24

33

GND 25

32

2Q9 26

31

2Q10 27

30

2OE 28

29

1CLK

1D1

1D2

GND

1D3

1D4

VCC

1D5

1D6

1D7

GND

1D8

1D9

1D10

2D1

2D2

2D3

GND

2D4

2D5

2D6

VCC

2D7

2D8

GND

2D9

2D10

2CLK

Truth Table(1)

Inputs

OEn

CLK

D

L

↑

H

L

↑

L

L

H OR L

X

H

X

X

Note:

1. H = High Signal Level

L = Low Signal Level

X = Irrelevant

Z = High Impedance

↑ = LOW-to-HIGH Transition

n = 1,2

Outputs

Qn

H

L

Q0

Z

2

PS8548 07/31/01

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