Complete, Isolated RS-485/RS-422

Data Interface

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 21

© 2005 Maxim Integrated Products

Maxim is a registered trademark of Maxim Integrated Products, Inc.

Ordering Information (continued)

Pin Configurations (continued)

28

27

26

25

24

23

22

21

1

2

3

4

5

6

7

8

AC1

AC2

B

D2

D1

ISO RO DRV

A

ISO DI IN

ISO DE IN

SD

FS

GND1

20

19

18

17

9

10

11

12

ISO COM1

ISO DI DRV

ISO DE DRV

GND2

DE

DI

16

15

13

14

ISO COM2

ISO RO LED

RO

MAX487

MAX1487

MAX845

ISOLATION BARRIER

DIP

TOP VIEW

MAX1480A/B/C

“C” parts is up to 250kbps.

TEMP RANGE

PIN-PACKAGE

MAX1480BCPI

0°C to +70°C

28 Wide Plastic DIP

MAX1480BEPI

-40°C to +85°C

28 Wide Plastic DIP

MAX1480CCPI

0°C to +70°C

28 Wide Plastic DIP

MAX1480CEPI

-40°C to +85°C

28 Wide Plastic DIP

MAX1490ACPG

0°C to +70°C

24 Wide Plastic DIP

MAX1490AEPG

-40°C to +85°C

24 Wide Plastic DIP

MAX1490BCPG

0°C to +70°C

24 Wide Plastic DIP

MAX1490BEPG

-40°C to +85°C

24 Wide Plastic DIP

PACKAGE TYPE

PACKAGE CODE

DOCUMENT NO.

28 PDIP

P28M-1

21-0044

Package Information

For the latest package outline information and land patterns,

“-” in the package code indicates RoHS status only. Package

drawings may show a different suffix character, but the drawing

pertains to the package regardless of RoHS status.