MAX3088CSA 查看數據表（PDF） - Maxim Integrated

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MAX3088CSA

Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

Maxim Integrated 

Fail-Safe, High-Speed (10Mbps),

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

Pin Description

PPIINN

MAX3080 MAX3081 MAX3082

MAX3083 MAX3084 MAX3085

MAX3086 MAX3087 MAX3088

MAX3089

NAME

FUNCTION

FULL-DUPLEX

DEVICES

HALF- FULL- HALF-

DUPLEX DUPLEX DUPLEX

DEVICES MODE MODE

—

—

—

1

1

H/F

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

mode; connect to GND or leave unconnected for full-duplex mode.

2

2

1

2

2

RO

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

3

—

2

3

3

RE 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 outputs. These

4

—

3

4

4

DE 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

5

3

4

5

5

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

forces noninverting output high and inverting output low.

—

—

—

6

6, 7

4

5

7

Slew-Rate-Limit Selector Pin. Connect SRL to GND for 10Mbps

6

SRL communication rate; connect to VCC for 500kbps communication

rate. Leave unconnected for 115kbps communication rate.

7

GND Ground

—

—

—

8

Transmitter Phase. Connect TXP to GND, or leave floating for normal

8

TXP transmitter phase/polarity. Connect to VCC to invert the transmitter

phase/polarity.

9

5

—

9

—

Y Noninverting Driver Output

—

—

—

—

9

Y Noninverting Receiver Input and Noninverting Driver Output*

10

6

—

10

—

Z Inverting Driver Output

—

—

—

—

10

Z Inverting Receiver Input and Inverting Driver Output*

11

7

—

11

—

B Inverting Receiver Input

—

—

—

—

11

B Receiver Input Resistors*

—

—

7

—

—

B Inverting Receiver Input and Inverting Driver Output

10 ______________________________________________________________________________________

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