ST485A

更新时间： 2024-09-15 22:21:19

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
13页	305K
描述
LOW POWER RS-485/RS-422 TRANSCEIVER

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中文翻译

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数据手册

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ST485A 数据手册

ST485

LOW POWER

RS-485/RS-422 TRANSCEIVER

■

LOW QUIESCENT CURRENT: 300µA

DESIGNED FOR RS-485 INTERFACE

APPLICATIONS

■

-7V TO 12V COMMON MODE INPUT

VOLTAGE RANGE

DRIVER MAINTAINS HIGH IMPEDANCE IN

3-STATE OR WITH THE POWER OFF

70mV TYPICAL INPUT HYSTERESIS

30ns PROPAGATION DELAYS, 5ns SKEW

OPERATE FROM A SINGLE 5V SUPPLY

CURRENT LIMITING AND THERMAL

SHUTDOWN FOR DRIVER OVERLOAD

PROTECTION

■

DIP

SOP

It operates from a single 5V supply.

■

ALLOWS UP TO 64 TRANSCEIVERS ON

THE BUS

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. .

DESCRIPTION

The ST485 is designed for bi-directional data

communications on multipoint bus transmission

line (half-duplex applciations).

The ST485 is al low power transceiver for RS-485

and RS-422 communication. Each part contains

one driver and one receiver.

The ST485 is available in three temperature

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

to 850°C) and automotive (-55°C to 125°C)

This transceiver draw 300µA (typ.) of supply

current when unloaded or fully loaded with

disabled drivers.

ORDERING CODES

Temperature

Type

Package

Comments

Range

ST485CN

ST485BN

ST485XN

ST485CD

ST485BD

ST485XD

ST485CDR

ST485BDR

ST485XDR

0 to 70 °C

-40 to 85 °C

-55 to 125 °C

0 to 70 °C

DIP-8

50parts per tube / 40tube per box

SO-8 (Tube)

100parts per tube / 20tube per box

2500 parts per reel

-40 to 85 °C

-55 to 125 °C

0 to 70 °C

SO-8 (Tube)

SO-8 (Tape & Reel)

-40 to 85 °C

-55 to 125 °C

2500 parts per reel

June 2003

1/13

12 3 4 5 6 7...13

中文翻译

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