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MAX3088ECSA

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

Maxim Integrated 

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

Pin Description

PIN

MAX3080E MAX3081E MAX3082E

MAX3083E MAX3084E MAX3085E

MAX3086E MAX3087E MAX3088E

MAX3089E

FULL-DUPLEX

DEVICES

HALF-

DUPLEX

DEVICES

FULL-

DUPLEX

MODE

HALF-

DUPLEX

MODE

—

—

—

1

1

2

2

1

2

2

3

—

2

3

3

4

—

3

4

4

5

3

—

—

6, 7

4

—

—

9

5

—

—

10

6

—

—

11

7

—

—

—

—

4

5

5

—

6

6

5

7

7

—

8

8

—

9

—

—

—

9

—

10

—

—

—

10

—

11

—

—

—

11

7

—

—

NAME

FUNCTION

H/F

RO

RE

DE

DI

SRL

GND

TXP

Y

Y

Z

Z

B

B

B

Half/Full-Duplex Selector Pin. Connect H/F to VCC for half-

duplex mode; connect to GND or leave unconnected for

full-duplex mode.

Receiver Output. When RE is low and if A - B ≥ -50mV,

RO will be high; if A - B ≤ -200mV, RO will be low.

Receiver Output Enable. Drive RE low to enable RO; RO

is high impedance when RE is high. Drive RE high and

DE low to enter low-power shutdown mode.

Driver Output Enable. Drive DE high to enable driver out-

puts. These outputs are high impedance when DE is low.

Drive RE high and DE low to enter low-power shutdown

mode.

Driver Input. With DE high, a low on DI forces noninverting

output low and inverting output high. Similarly, a high on DI

forces non-inverting output high and inverting output low.

Slew-Rate-Limit Selector Pin. Connect SRL to GND for

10Mbps communication rate; connect to VCC for

500kbps communication rate. Leave unconnected for

115kbps communication rate.

Ground

Transmitter Phase. Connect TXP to GND, or leave floating

for normal transmitter phase/polarity. Connect to VCC to

invert the transmitter phase/polarity.

Noninverting Driver Output

Noninverting Receiver Input and Noninverting Driver

Output*

Inverting Driver Output

Inverting Receiver Input and Inverting Driver Output*

Inverting Receiver Input

Receiver Input Resistors*

Inverting Receiver Input and Inverting Driver Output

10 ______________________________________________________________________________________

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