Datasheet > ST490A_06

ST490A_06

更新时间： 2024-11-29 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
17页	211K
描述
Low power high speed RS-485/RS-422 transceiver

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ST490A_06 数据手册

ST490A

Low power high speed

RS-485/RS-422 transceiver

General features

■ Low supply current: 5mA max

■

-7V to 12V common mode input voltage range

■ 70mV tipycal input hysteresis

■ Designed for 25Mbps operation

■ Operate from a single 5V supply

■ ±4kV ESD protection

DIP-8

SO-8

■ Current limiting and thermal shutdown for

driver overload protection

Description

The ST490A is a low power transceiver for RS-

485 and RS-422 communications. The device

contains one driver and one receiver in full duplex

configuration. The ST490A draws 5mA (typ.) of

supply current when unloaded or fully loaded with

disabled drivers. It operates from a single 5V

supply.

Driver is short-circuit current limited and is

protected against excessive power dissipation by

thermal shutdown circuitry that place the driver

outputs into a high-impedance state. The receiver

input has a fail-safe feature that guarantees a

logic high output if both inputs are open circuit.

Order code

Part number

Temperature range

Package

Packaging

ST490ACN

ST490ABN

ST490ACDR

ST490ABDR

0 to 70 °C

-40 to 85 °C

0 to 70 °C

DIP-8

50parts per tube / 40tube per box

2500 parts per reel

DIP-8

SO-8 (Tape & Reel)

-40 to 85 °C

2500 parts per reel

May 2006

Rev 3

1/17

www.st.com

12 3 4 5 6 7...17

中文翻译

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