ST485ACN datasheet(1/19 Pages) STMICROELECTRONICS

No de pièce	ST485ACN

Description	Very high speed low power RS-485/RS-422 transceiver

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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1 / 19 page

March 2006

Rev 2

1/19

19

Order code

Part number

Temperature range

Package

Comments

ST485ACN

0 to 70 °C

DIP-8

50parts per tube / 40tube per box

ST485ABN

-40 to 85 °C

DIP-8

50parts per tube / 40tube per box

ST485ACDR

0 to 70 °C

SO-8 (Tape & reel)

2500 parts per reel

ST485ABDR

-40 to 85 °C

SO-8 (Tape & reel)

2500 parts per ree

ST485A

Very high speed

low power RS-485/RS-422 transceiver

General features

s

Low supply current: 5mA max

s

High data rate > 30Mbps

s

Designed for RS 485 interface applications

s

-7 to 12 common mode input voltage range

s

Driver maintains high impedance in 3-state or

with the power off

s

70mV typical input hysteresis

s

Operate from single 5 supply

s

±4kV ESD protection

s

Current limiting and thermal shutdown for

driver overload protection

s

Latch-up free up to 500mA

Description

The ST485A is a low power, high speed

transceiver for RS-485 and RS-422

communications. The device contains one driver

and one receiver in half duplex configuration. The

ST485A draws 3mA (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.

The ST485A is designed for bi-directional data

communications or multipoint bus transmission

lines.

DIP-8

SO-8

www.st.com

Numéro de pièce similaire - ST485ACN

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Description similaire - ST485ACN

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ST485ACN Fiches technique(PDF) 1 Page - STMicroelectronics

ST485ACN Fiches technique(HTML) 1 Page - STMicroelectronics

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