ST491A_07 datasheet(1/17 Pages) STMICROELECTRONICS

부품명	ST491A

상세설명	Low power high speed RS-485/RS-422 transceiver

PDF	17 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

Logo

1 / 17 page

May 2007

Rev 6

1/17

17

Order code

Part number

Temperature range

Package

Packaging

ST491ACN

0 to 70 °C

DIP-14

25parts per tube / 40tube per box

ST491A

Low power high speed

RS-485/RS-422 transceiver

Features

■ Low supply current: 5mA max

■ Designed for RS485 interface applications

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

■ 70mV typical input hysteresis

■ Designed for 25Mbps operation

■ Operate from a single 5V supply

■ ±4kV ESD protection

■ Current limiting and thermal shutdown for

driver overload protection

Description

The ST491A 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 ST491A draws 5mA (typ.) of

supply current when unloaded and 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.

DIP-14

www.st.com

유사한 부품 번호 - ST491A_07

제조업체	부품명	데이터시트	상세설명
STMicroelectronics	ST491ABD	269Kb / 12P	LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER Jul-2003
	ST491ABDR	269Kb / 12P	LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER Jul-2003
	ST491ABN	269Kb / 12P	LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER Jul-2003
	ST491ACD	269Kb / 12P	LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER Jul-2003
	ST491ACDR	269Kb / 12P	LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER Jul-2003

More results

유사한 설명 - ST491A_07

제조업체	부품명	데이터시트	상세설명
STMicroelectronics	ST485	545Kb / 19P	Low power RS-485/RS-422 transceiver 21-Mar-2006
	ST490A	203Kb / 11P	LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER Nov-2002
	ST491A	269Kb / 12P	LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER Jul-2003
	ST75C176	260Kb / 18P	LOW POWER RS-485/RS-422 TRANSCEIVER 04-May-2006
	ST485A	254Kb / 19P	Very high speed low power RS-485/RS-422 transceiver 28-Mar-2006
	ST490A	210Kb / 17P	Low power high speed RS-485/RS-422 transceiver 04-May-2006
	ST485B	730Kb / 19P	Low power RS-485/RS-422 transceiver 07-Feb-2008
	ST485AB	717Kb / 19P	Very high speed low power RS-485/RS-422 transceiver 24-Aug-2007
	ST490AB	686Kb / 17P	Low power high speed RS-485/RS-422 transceiver 07-Feb-2008
	ST75C176B	326Kb / 17P	Low power RS-485/RS-422 transceiver 07-Nov-2007

More results

ST491A 데이터시트(PDF) 1 Page - STMicroelectronics

ST491A 데이터시트(HTML) 1 Page - STMicroelectronics

유사한 부품 번호 - ST491A_07

유사한 설명 - ST491A_07

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