ST4485EB Datasheet PDF - ST Microelectronics

●The ST4485EB device is a ± 15 kV ESD protected, 3.3 V low power transceiver for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration.

●The ST4485EB transmits and receives at a guaranteed data rate of at least 20 Mbps.

●All transmitter outputs and receiver inputs are protected to ± 15 kV using “Human Body Model”.

●The 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.

●Key Features

● ESD protection

● ± 15 kV human body model

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

● Operate from a single 3.3 V supply - no charge pump required

● Interoperable with 5 V logic

● 1 μA low current shutdown mode max.

● Guaranteed 20 Mbps data rate

● -7 to 12 V common mode input voltage range

● Half duplex versions available

● Industry standard 75176 pinout

● Current limiting and thermal shutdown for driver overload protection

● Guaranteed high receiver output state for floating inputs with no signal present

● Allow up to 64 transceivers on the bus

● Wide operating temperature range: -40 to +105 °C