ST485B 데이터 시트보기 (PDF) - STMicroelectronics

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ST485B

Low power RS-485/RS-422 transceiver

STMicroelectronics 

ST485B - ST485C

1

Pin configuration

Figure 1. Pin connections

Pin configuration

Table 2. Pin description

Pin n°

1

2

3

4

5

6

7

8

Symbol

RO

RE

DE

DI

GND

A

B

VCC

Name and function

Receiver output

Receiver output enable

Driver output enable

Driver input

Ground

Non-inverting receiver input and non-inverting driver output

Inverting receiver input and inverting driver output

Supply voltage

3/19

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