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
â– Low quiescent current: 300 µA
â– Designed for RS-485 interface application
â– -7 V to 12 V common mode input voltage range
â– Driver maintains high impedance in 3-state or with the power OFF
â– 70 mV typical input hysteresis
â– 30 ns propagation delay, 5 ns skew
â– Operates from a single 5 V supply
â– Current limiting and thermal shutdown for driver overload protection
â– ESD protection:
– ±15 kV (H.B.M.)
– ±8 kV (IEC-1000-4-2 contact discharge)
â– Allows up to 256 transceivers on the bus