74LVC16245ADL Просмотр технического описания (PDF) - Philips Electronics

Номер в каталоге

Компоненты Описание

производитель

74LVC16245ADL

16-bit bus transceiver with direction pin; 5V tolerant (3-State)

Philips Electronics 

Philips Semiconductors

16-bit bus transceiver with direction pin; 5V tolerant

(3-State)

Product specification

74LVC16245A/

74LVCH16245A

PIN DESCRIPTION

PIN NUMBER SYMBOL

1

1DIR

2, 3, 5, 6, 8, 9,

11, 12

1B0 to 1B7

4, 10, 15, 21,

28, 34, 39, 45

GND

7, 18, 31, 42

13, 14, 16, 17,

19, 20, 22, 23

VCC

2B0 to 2B7

24

2DIR

25

2OE

36, 35, 33, 32,

30, 29, 27, 26

47, 46, 44, 43,

41, 40, 38, 37

2A0 to 2A7

1A0 to 1A7

48

1OE

NAME AND FUNCTION

Direction control

Data inputs/outputs

Ground (0V)

Positive supply voltage

Data inputs/outputs

Direction control

Output enable input

(active LOW)

Data inputs/outputs

Data inputs/outputs

Output enable input

(active LOW)

LOGIC SYMBOL

1

1DIR

1A0 47

2DIR 24

48 1OE

2 1B0 2A0 36

25 2OE

13 2B0

1A1 46

3 1B1 2A1 35

14 2B1

1A2 44

5 1B2 2A2 33

16 2B2

1A3 43

6 1B3 2A3 32

17 2B3

1A4 41

8 1B4 2A4 30

19 2B4

1A5 40

9 1B5 2A5 29

20 2B5

1A6 38

11 1B6 2A6 27

22 2B6

1A7 37

12 1B7 2A7 26

23 2B7

FUNCTION TABLE

INPUTS

nOE

nDIR

L

L

L

H

H

X

H = HIGH voltage level

L = LOW voltage level

X = don’t care

Z = high impedance OFF-state

SW00197

INPUTS/OUTPUT

nAn

nBn

A=B

inputs

inputs

B=A

Z

Z

LOGIC SYMBOL (IEEE/IEC)

1OE 48

1DIR 1

2OE 25

2DIR 24

1A0 47

1A1 46

1A2 44

1A3 43

1A4 41

1A5 40

1A6 38

1A7 37

36

2A0

2A1 35

2A2 33

2A3 32

2A4 30

2A5 29

27

2A6

26

2A7

G3

3 EN1 [BA]

3 EN2 [AB]

G6

6 EN4 [BA]

6 EN5 [AB]

1

2

4

5

BUS HOLD CIRCUIT

VCC

2 1B0

3 1B1

5 1B2

6 1B3

8 1B4

9 1B5

11 1B6

12 1B7

13 2B0

14 2B1

16 2B2

17 2B3

19 2B4

20 2B5

22 2B6

23 2B7

SW00196

Data Input

To internal circuit

SW00044

1997 Sep 25

3

Share Link: