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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com

SP3490_349_02_0270

PIN FUNCTION

D

R

A

B

Z

Y

R

GND

2

1

3

4

5

6

7

8

D

Pin  - Vcc - Positive supply +3.00V < Vcc < +3.60V

Pin 2 - R - Receiver output

Pin 3 - D - Driver input

Pin 4 - GND - Ground connection

Pin 5 - Y - Non-inverting driver output

Pin 6 - Z - Inverting driver output

Pin 7 - B - Inverting receiver Input

Pin 8 - A - Non-inverting receiver input

SP3490

Pin Function SP3490

D

R

NC

A

B

Z

Y

R

NC

NC

DE

REB

GND

GND

2

1

3

4

5

6

7

8

9

10

11

12

13

14

D

Pin  - NC - No connect

Pin 2 - R - Receiver output

Pin 3 - REB - Receiver cutput enable active LOW

Pin 4 - DE - Driver output enable active HIGH

Pin 5 - D - Driver input

Pin 6 - GND - Ground connection

Pin 7 - GND - Ground connection

Pin 8 - NC - No connect

Pin 9 - Y - Non-inverting driver output

Pin 0 - Z - Inverting driver output

Pin  - B - Inverting receiver Input

Pin 2 - A - Non-Inverting receiver input

Pin 3 - NC - No connect

Pin 4 - Vcc - Positive supply +3.00V < Vcc < +3.60V

SP3491

Pin Function SP3491