ST485ER datasheet(1/19 Pages) STMICROELECTRONICS

部件名	ST485ER

功能描述	짹15KV ESD protected, Low power RS-485/RS-422 transceiver

PDF	19 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 19 page

October 2006

Rev 5

1/19

19

Order code

Part number

Temperature range

Package

Packaging

ST485ERBN

-40 to 85 °C

DIP-8

50parts per tube / 40tube per box

ST485ERBDR

-40 to 85 °C

SO-8 (Tape & reel)

2500 parts per reel

ST485ER

±15KV ESD protected, Low power

RS-485/RS-422 transceiver

General features

■ Low quiescent current: 300µA

■ Designed for RS-485 interface application

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

■ Driver maintains high impedance in 3-state or

with the power OFF

■ 70mV tipycal input hysteresis

■ 30ns propagation delay, 5ns skew

■ Operate from a single 5V supply

■ Current limiting and thermal shutdown for

driver overload protection

■ ESD protection:

– ±15KV (H.B.M.)

– ±8KV (IEC-1000-4-2 contact discharge)

■ Allows up to 256 transceivers on the bus

Description

The ST485E is al low power transceiver for RS-

485 and RS-422 communication. Each driver

output and receiver input is protected against

±15KV electrostatic discharge (H.B.M.) ±8KV

(IEC-1000-4-2 contact discharge) shocks, without

latchup. These parts contain one driver and one

receiver.

This transceiver draws 300µA (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 places the driver

outputs into a high-impedance state.

The ST485E is designed for bi-directional data

communications on multipoint bus transmission

line (half-duplex applciations).

DIP-8

SO-8

www.st.com

类似零件编号 - ST485ER

制造商	部件名	数据表	功能描述
STMicroelectronics	ST485ER	303Kb / 13P	5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER Sep-2003
	ST485ERBD	303Kb / 13P	5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER Sep-2003
	ST485ERBDR	303Kb / 13P	5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER Sep-2003
	ST485ERBN	303Kb / 13P	5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER Sep-2003
	ST485ERCD	303Kb / 13P	5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER Sep-2003

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类似说明 - ST485ER

制造商	部件名	数据表	功能描述
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