2

PS8089C

04/17/01

PI74ALVCH16260

12-Bit To 24-Bit Multiplexed D-Type Latch

with3-StateOutputs

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PinName

Description

OE

Output Enable Input (Active LOW)

SEL

Select

LE

Latch Enable

A,1B,2B

Data Inputs

A,1B,2B

3-State Outputs

GND

Ground

Power

ProductPinDescription

Note:

1. H = High Signal Level

L = Low Signal Level

X = Irrelevant

Z = High Impedance

ProductPinConfiguration

s

t

u

p

n

Is

t

u

p

t

u

O

AB

1

A

E

LB

2

A

E

LB

1

E

OB

2

E

OB

1B

2

HHH

L

L

H

H

LH

H

L

L

L

L

HH

L

L

L

H

0

B

2

LHL

L

L

L

0

B

2

HLH

L

L

0

B

1H

LL

H

L

L

0

B

1L

XL

L

L

L

0

B

10

B

2

XXX

H

H

Z

Z

XXX

L

H

e

v

it

c

AZ

XXX

H

L

Z

e

v

it

c

A

XXX

L

L

e

v

it

c

Ae

v

it

c

A

BtoA(OEB=H)

AtoB(OEA=H)

s

t

u

p

n

I

t

u

p

t

u

O

A

B

1B

2L

E

SB

1

E

LB

2

E

LA

E

O

HX

H

H

X

L

H

LX

H

H

XL

L

XX

H

L

X

L

0

A

XH

L

X

H

L

H

XL

L

X

H

L

L

XX

L

X

L

L

0

A

XX

X

X

X

H

Z

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

25

26

27

28

32

31

30

29

OEA

LE1B

2B3

GND

2B2

2B1

VCC

A1

A2

A3

GND

A4

A5

A6

A7

A8

A9

GND

A10

A11

A12

VCC

1B1

1B2

GND

1B3

LE2B

SEL

OE2B

LEA2B

2B4

GND

2B5

2B6

VCC

2B7

2B8

2B9

GND

2B10

2B11

2B12

1B12

1B11

1B10

GND

1B9

1B8

1B7

VCC

1B6

1B5

GND

1B4

LEA1B

OE1B

56-Pin

A,V