ST485B

更新时间： 2024-11-21 03:30:55

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
19页	731K
描述
Low power RS-485/RS-422 transceiver

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ST485B 数据手册

ST485B

ST485C

Low power RS-485/RS-422 transceiver

Features

■ Low quiescent current: 300 µA

■ Designed for RS-485 interface application

■ -7 V to 12 V common mode input voltage range

■ Driver maintains high impedance in 3-state or

with the power OFF

■ 70 mV typical input hysteresis

■ 30 ns propagation delay, 5 ns skew

■ Operate from a single 5 V supply

DIP-8

SO-8

■ Current limiting and thermal shutdown for

The ST485 is available in three temperature

range: commercial (0 °C to 70 °C), industrial (-40

°C to 85 °C) and automotive (-55 °C to 125 °C).

driver overload protection

■ Allows up to 64 transceivers on the bus

Description

The ST485 is al low power transceiver for RS-485

and RS-422 communication. Each part contains

one driver and one receiver.

This transceiver draw 300 µA (typ.) of supply

current when unloaded or fully loaded with

disabled drivers.

It operates from a single 5 V supply.

Driver is short-circuit current limited and is

protected against excessive power dissipation by

thermal shutdown circuitry that placed the driver

outputs into a high-impedance state.

The ST485 is designed for bi-directional data

communications on multipoint bus transmission

line (half-duplex applications).

Table 1.

Order code

ST485CN

Device summary

Temperature range

Package

Packaging

0 to 70 °C

-40 to 85 °C

0 to 70 °C

DIP-8

50 parts per tube / 40 tube per box

2500 parts per reel

ST485BN

ST485CDR

ST485BDR

DIP-8

SO-8 (tape and reel)

-40 to 85 °C

2500 parts per reel

February 2008

Rev 15

1/19

www.st.com

12 3 4 5 6 7...19

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与ST485B相关器件

型号	品牌	获取价格	描述	数据表
ST485BD	STMICROELECTRONICS	获取价格	Low power RS-485/RS-422 transceiver
ST485BDR	STMICROELECTRONICS	获取价格	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485BN	STMICROELECTRONICS	获取价格	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485C	STMICROELECTRONICS	获取价格	Low power RS-485/RS-422 transceiver
ST485CD	STMICROELECTRONICS	获取价格	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485CDR	STMICROELECTRONICS	获取价格	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485CN	STMICROELECTRONICS	获取价格	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485E	STMICROELECTRONICS	获取价格	?5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER
ST485E_07	STMICROELECTRONICS	获取价格	【15KV ESD protected, low power RS-485/RS-422
ST485EB	STMICROELECTRONICS	获取价格	LOW POWER RS-485/RS422 TRANSCEIVER