ST485ERBD Datasheet PDF - ST Microelectronics

●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.

●■ LOW QUIESCENT CURRENT: 300µA

●■ DESIGNED FOR RS-485 INTERFACE APPLICATIONS

●■ -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 DELAYS, 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