+3.0V to +5.5V, 1µA, RS-232/RS-485/422

Multiprotocol Transceivers

8

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Pin Description

PIN

MAX3160

MAX3161

MAX3162

NAME

FUNCTION

1

1

1

C1+

Positive Terminal of the Positive Flying Capacitor

222

Positive Supply Voltage

3

3

3

C1-

Negative Terminal of the Positive Flying Capacitor

4

4

4

GND

Ground

—

5

5

T1OUT

RS-232 Driver Output

5

——

Z(B)/T1OUT

Inverting RS-485/422 Driver Output in Full-Duplex Mode

(and Inverting RS-485/422 Receiver Input in Half-Duplex

Mode)/RS-232 Driver Output

——

6

Z

Inverting RS-485/422 Driver Output

—

6

—

Z(B)

Inverting RS-485/422 Driver Output in Full-Duplex Mode

(and Inverting RS-485/422 Receiver Input in Half-Duplex

Mode)

6

——

Y(A)/T2OUT

Noninverting RS-485/422 Driver Output in Full-Duplex

Mode (and Noninverting RS-485/422 Receiver Input in

Half-Duplex Mode)/RS-232 Driver Output

——

7

Y

Noninverting RS-485/422 Driver Output

—

7

—

Y(A)

Noninverting RS-485/422 Driver Output in Full-Duplex

Mode (and Noninverting RS-485/422 Receiver Input in

Half-Duplex Mode)

7

9

9

R1OUT

RS-232 Receiver Output

—

8

8

T2OUT

RS-232 Driver Output

810

—

RO/R2OUT

RS-485/422 Receiver Output/RS-232 Receiver Output

911

13

SHDN

Active-Low Shutdown-Control Input. Drive low to shut

down transmitters and charge pump.

——

10

R2OUT

RS-232 Driver Output

10

12

14

FAST

Select slew rate limiting for both RS-232 and RS-

485/422. Slew rate limits with a logic-level low.

——

11

RO

RS-485/422 Receiver Output

11

13

—

RS-485/

RS-232

Software-Programmable Pin Functionality. Operates as

RS-485/422 with a logic-level high; operates as RS-232

with a logic-level low.

——

12

RE485

RS-485/422 Receiver Enable. Logic-level low enables

RS-485/422 receivers.

12

14

—

HDPLX

Software-Programmable Pin Functionality. Operates in

full-duplex mode when low; operates in half-duplex

mode when high.