XR

33202

3/14

REV2A

Pin Functions

Pin Number

Pin Name

Type

Description

1

VL

Supply

I/O power supply, sets the logic levels for RO, DE, RE and DI

2

RO

Output

Receiver output

3

DE

Input

Driver enable, driver active when DE = 1, disabled when DE = 0

4

RE

Input

Receiver enable, receiver is disabled when RE = 1, enabled when RE = 0

5

DI

Input

Driver input

6

GND

Supply

Ground

7

NC

No connection, can be connected to ground

8

A/Y

I/O

±15kV ESD protected, RS-485/RS-422 half-duplex non-inverting receiver input and non-inverting

driver output

9

B/Z

I/O

±15kV ESD protected, RS-485/RS-422 half-duplex inverting receiver input and inverting driver output

10

VCC

Supply

Power supply

*

Paddle

Exposed paddle (DFN package), connect to ground

Pin Configuration

1

VL

2

RO

3

DE

4

DFN

5

10

9

8

7

6

DI

RE

VCC

B/Z

A/Y

NC

GND

Transmitting

Inputs

Outputs

nRE

DE

DI

A/Y

B/Z

X

1

1

1

0

X

1

0

0

1

0

0

X

High-Z

1

0

X

Shutdown

Receiving

Inputs

Output

nRE

DE

RO

0

X

≥ -50mV

1

0

X

0

X

≤ -200mV

0

0

X

Open/Shorted/Idle

1

1

1

X

High-Z

1

0

X

Shutdown