ST485EBD

？ 5KV ESD保护，低功耗RS - 485 / RS - 422收发器 ±5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER

Description

The ST485E is a low power transceiver for RS-485 and RS-422 communication. Each driver output and receiver input is protected against ±15 kV electrostatic discharge H.B.M. ESD shocks, without latch-up. These parts contain one driver and one receiver in half duplex configuration.

Features

■ Low quiescent current: 300 µA

■ Designed for RS-485 interface application

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

■ Driver maintains high impedance in 3-state or with the power OFF

■ 70 mV typical input hysteresis

■ 30 ns propagation delay, 5 ns skew

■ Operates from a single 5 V supply

■ Current limiting and thermal shutdown for driver overload protection

■ ESD protection:

  – ±15 kV H.B.M.

  – ±8 kV IEC-1000-4-2 contact discharge

■ Allows up to 256 transceivers on the bus