IL422

4

NVE Corporation

11409 Valley View Road, Eden Prairie, MN 55344-3617

Phone: (952) 829-9217

www.nve.com

youtube.com/NveCorporation

iso-apps@nve.com

IL422 Pin Connections

1

VDD1

Input Power Supply

2

GND1

Input Power Supply Ground*

3

R

Output Data from Bus

4

RE

Read Data Enable

(if RE is high, R = high impedance)

5

DE

Drive Enable

6

D

Data Input to Bus

7

NC

No Internal Connection

8

GND1

Input Power Supply Ground*

9

GND2

Output Power Supply Ground*

10

ISODE

Isolated DE Output for use in Profibus

applications where the state of the isolated

drive enable node needs to be monitored

11

Y

Y Bus (Drive – True)

12

Z

Z Bus (Drive – Inverse)

13

B

B Bus (Receive – Inverse)

14

A

A Bus (Receive – True)

15

GND2

Output Power Supply Ground*

16

VDD2

Output Power Supply

VDD

1

VDD

2

GND

1

D

GND

2

R

A

RE

B

DE

Z

NC

Y

ISODE

GND

1

GND

2

IL422

*NOTE: Pins 2 and 8 are internally connected, as are pins 9 and 15.