MAX3070E 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

MAX3070E

+3.3V / 15kV ESD-Protected / Fail-Safe / Hot-Swap / RS-485/RS-422 Transceivers

Maxim Integrated 

+3.3V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

Pin Description

PIN

MAX3070E MAX3071E MAX3072E

MAX3073E MAX3074E MAX3075E

MAX3076E MAX3077E MAX3078E

MAX3079E

NAME

FUNCTION

FULL-DUPLEX

DEVICES

HALF-

DUPLEX

DEVICES

FULL- HALF-

DUPLEX DUPLEX

MODE MODE

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

—

—

—

1

1

H/F 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 is high; if (A - B) ≤ -200mV, RO is low.

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

3

—

2

3

3

RE

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

low to enter low-power shutdown mode. RE is a hot-swap

input (see the Hot-Swap Capability section for details).

Driver Output Enable. Drive DE high to enable driver

outputs. These outputs are high impedance when DE is

4

—

3

4

4

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

shutdown mode. DE is a hot-swap input (see the Hot-

Swap Capability section for details).

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.

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

—

—

—

6

6

SRL

16Mbps communication rate; connect to VCC for 500kbps

communication rate. Leave unconnected for 250kbps

communication rate.

6, 7

4

5

7

7

GND Ground

Transmitter Phase. Connect TXP to ground or leave

—

—

—

8

8

TXP floating for normal transmitter phase/polarity. Connect to

VCC to invert the transmitter phase/polarity.

9

5

—

9

—

Y Noninverting Driver Output

—

—

—

—

9

Y Noninverting Driver Output and Noninverting Receiver

Input*

10

6

—

10

—

Z Inverting Driver Output

—

—

—

—

10

Z Inverting Driver Output and Inverting Receiver Input*

11

7

—

11

—

B Inverting Receiver Input

—

—

—

—

11

B Receiver Input Resistors*

—

—

7

—

—

B Inverting Receiver Input and Inverting Driver Output

12 ______________________________________________________________________________________

Share Link: