PI74ALVCHR16269V Просмотр технического описания (PDF) - Pericom Semiconductor

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PI74ALVCHR16269V

12-Bit to 24-Bit Registered Bus Exchanger With 3-STATE Outputs

Pericom Semiconductor 

PI74ALVCHR16269

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Product Pin Description

Pin Name Description

OE

Output Enable Input (Active LOW)

CLK

Clock

SEL

Select (Active Low)

CLKEN

Clock Enable (Active Low)

A,1B,2B 3-State Outputs

GND

Ground

VCC

Power

Product Pin Configuration

OEA

OEB1

2B3

GND

2B2

2B1

VCC

A1

A2

A3

GND

A4

A5

A6

A7

A8

A9

GND

A10

A11

A12

VCC

1B1

1B2

GND

1B3

NC

SEL

1

56

2

55

3

54

4

53

5

52

6

51

7 56-PIN 50

8 A56 49

9 V56 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

25

32

26

31

27

30

28

29

OEB2

CLKENA2

2B4

GND

2B5

2B6

VCC

2B7

2B8

2B9

GND

2B10

2B11

2B12

1B12

1B11

1B10

GND

1B9

1B8

1B7

VCC

1B6

1B5

GND

1B4

CLKENA1

CLK

Truth Tables(1)

Inputs

CLK

OEA

­

H

­

H

­

L

­

L

OEB

H

L

H

L

Outputs

A

1B,2B

Z

Z

Z

Active

Active

Z

Active Active

A to B STORAGE (OEB = L)

INPUTS

CLKENA1 CLKENA2 CLK A

L

H

­

L

L

H

­

H

L

L

­

L

OUTPUTS

1B

2B

L

2B0(2)

H

2B0(2)

L

L

L

L

­

H

H

H

H

L

­

L

1B0(2)

L

H

L

­

H

1B0(2)

H

H

H

X

X

1B0(2) 2B0(2)

B to A STORAGE (OEA = L)

Inputs

CLK

SEL

1B

Outputs

2B

A

X

H

X

X

A0(2)

X

L

X

X

A0(2)

↑

H

L

X

L

↑

H

Η

X

H

↑

L

X

L

L

↑

L

X

H

H

Notes:

1. H = High Signal Level

L = Low Signal Level

X = Irrelevant

Z = High Impedance

↑ = Transition, Low to High

2. Output level before indicated steady state input conditions established

2

PS8372 01/28/99

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