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 (continued)

PIN

MAX3080 MAX3081 MAX3082

MAX3083 MAX3084 MAX3085

MAX3086 MAX3087 MAX3088

MAX3089

NAME

FULL-DUPLEX

DEVICES

HALF- FULL- HALF-

DUPLEX DUPLEX DUPLEX

DEVICES MODE MODE

FUNCTION

12

8

—

12

—

A Noninverting Receiver Input

—

—

—

—

12

A Receiver Input Resistors*

—

—

6

—

—

A Noninverting Receiver Input and Noninverting Driver Output

Receiver Phase. Connect RXP to GND, or leave unconnected for

—

—

—

13

13

RXP normal transmitter phase/polarity. Connect to VCC to invert the

receiver phase/polarity.

14

1

8

14

14

VCC Positive Supply; 4.75V ≤ VCC ≤ 5.25V

1, 8, 13

—

—

—

—

N.C. Not Connected. Not internally connected.

*(MAX3089 only.) In half-duplex mode, the driver outputs serve as receiver inputs. The full-duplex receiver inputs (A and B) will still

have a 1/8-unit load, but are not connected to the receiver.

MAX3080/MAX3083/MAX3086

TRANSMITTING

INPUTS

RE

DE

DI

OUTPUTS

Z

Y

X

1

1

0

1

X

1

0

1

0

0

0

X

High-Z High-Z

1

0

X

Shutdown

RECEIVING

INPUTS

OUTPUT

RE

DE

A-B

RO

0

X

≥ -0.05V

1

0

X

≤ -0.2V

0

0

X

Open/shorted

1

1

1

X

High-Z

1

0

X

Shutdown

X = Don’t care

Shutdown mode, driver and receiver outputs high impedance

Function Tables

MAX3081/MAX3084/MAX3087

TRANSMITTING

INPUT

OUTPUTS

DI

Z

Y

1

0

1

0

1

0

INPUTS

A-B

≥ -0.05V

≤ -0.2V

Open/shorted

RECEIVING

OUTPUT

RO

1

0

1

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