ST485ECN

？ 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 ±15KV electrostatic discharge H.B.M. ESD shocks, without latch-up. These parts contain one driver and one receiver in half duplex configuration.

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 typical input hysteresis

■ 30ns propagation delay, 5ns skew

■ Operates 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 64 transceivers on the bus