MC74LCX16244DTR2 datasheet(2/8 Pages) ONSEMI

Part #	MC74LCX16244DTR2

Description	Low?뭋oltage CMOS 16?묪it Buffer With 5 V?뭈olerant Inputs and Outputs (3?뭆tate, Non?묲nverting)

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Manufacturer	ONSEMI [ON Semiconductor]

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MC74LCX16244

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Figure 1. Pinout: 48−Lead (Top View)

48

1

OE2

OE1

47

2

D0

O0

46

3

D1

O1

45

4

GND

44

5

D2

O2

43

6

D3

O3

42

7

VCC

41

8

D4

O4

40

9

D5

O5

39

10

GND

38

11

D6

O6

37

12

D7

O7

36

13

D8

O8

35

14

D9

O9

34

15

GND

33

16

D10

O10

32

17

D11

O11

31

18

VCC

30

19

D12

O12

29

20

D13

O13

28

21

GND

27

22

D14

O14

26

23

D15

O15

25

24

OE3

OE4

Table 1. PIN NAMES

Pins

Function

OEn

D0−D15

O0−O15

Output Enable Inputs

Inputs

Outputs

OE1

OE2

D0:3

D4:7

O0:3

O4:7

OE3

OE4

D8:11

D12:15

O8:11

O12:15

One of Four

1

48

25

24

Figure 2. Logic Diagram

TRUTH TABLE

OE1

D0:3

O0:3

OE2

D4:7

O4:7

OE3

D8:11

O8:11

OE4

D12:15

O12:15

L

H

L

H

L

H

L

H

X

Z

H

X

Z

H

X

Z

H

X

Z

H

=

High Voltage Level

L

=

Low Voltage Level

Z

=

High Impedance State

X

=

High or Low Voltage Level and Transitions Are Acceptable; for ICC reasons, DO NOT FLOAT Inputs.

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