SN74LVC16245A

16BIT BUS TRANSCEIVER

WITH 3STATE OUTPUTS

SCES062N − DECEMBER 1995 − REVISED DECEMBER 2003

2

POST OFFICE BOX 655303

description/ordering information (continued)

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator

in a mixed 3.3-V/5-V system environment.

preventing damaging current backflow through the device when it is powered down.

terminal assignments

12

34

5

6

A

1DIR

NC

NC

NC

NC

1OE

B

1B2

1B1

GND

GND

1A1

1A2

C

1B4

1B3

VCC

VCC

1A3

1A4

D

1B6

1B5

GND

GND

1A5

1A6

E

1B8

1B7

1A7

1A8

F

2B1

2B2

2A2

2A1

G

2B3

2B4

GND

GND

2A4

2A3

H

2B5

2B6

VCC

VCC

2A6

2A5

J

2B7

2B8

GND

GND

2A8

2A7

K

2DIR

NC

NC

NC

NC

2OE

NC − No internal connection

FUNCTION TABLE

(each 8-bit section)

INPUTS

OPERATION

OE

DIR

OPERATION

L

L

B data to A bus

L

H

A data to B bus

H

X

Isolation

logic diagram (positive logic)

To Seven Other Channels

1DIR

1A1

1B1

1OE

To Seven Other Channels

2DIR

2A1

2B1

2OE

1

47

24

36

48

2

25

13

Pin numbers shown are for the DGG, DGV, and DL packages.

GQL OR ZQL PACKAGE

(TOP VIEW)

J

H

G

F

E

D

C

B

A

2

13

4

6

5

K