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ST490ACN

更新时间： 2024-10-31 22:42:43

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
11页	206K
描述
LOW POWER HIGH SPEED 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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ST490ACN 数据手册

ST490A

LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER

■

LOW SUPPLY CURRENT: 5mA MAX

-7 TO 12 COMMON MODE INPUT VOLTAGE

RANGE

■

70mV TYPICAL INPUT HYSTERESIS

DESIGNED FOR 25Mbps OPERATION

OPERATE FROM SINGLE 5 SUPPLY

±4kV ESD PROTECTION

CURRENT LIMITING AND THERMAL

SHUTDOWN FOR DRIVER OVERLOAD

DIP

SOP

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.

ORDERING CODES

Temperature

Type

Package

Comments

Range

ST490ACN

ST490ABN

ST490ACD

ST490ABD

ST490ACDR

ST490ABDR

0 to 70 °C

-40 to 85 °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

0 to 70 °C

SO-8 (Tape & Reel)

-40 to 85 °C

2500 parts per reel

November 2002

1/11

12 3 4 5 6 7...11

中文翻译

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ST491ACN	STMICROELECTRONICS	获取价格	LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER