Low-power RS485 transceiver

with high data-rate and integrated ESD protection

High-speed data networks push for data rates over extended transmission distances and in increasingly robust conditions

TIA/EIA-485A communication standard, or RS-485 specifies the electrical characteristics of generators and receivers that may be employed when specified for the interchange of binary signals in multipoint interconnection of digital equipment. The RS-485 serial communication protocol is one of the most widely used communication protocols for supporting inexpensive local networks offering highly reliable transmitted data and multidrop communications links. RS-485 transceivers today feature high-speed data communication and improved robustness of the bus transmission line to guarantee a high level of data integrity.

Industrial robots

Factory automation

Video surveillance

Programmable logic controller (PLC)

Telecom infrastructures

Building control

Power & energy - metering

Servo control

Use cases and application examples

High-speed over short to medium size cables

The high speed up to 40 Mbps data rate makes ST’s RS485 products suitable for applications over short cable runs.

Enhanced robustness in complex industrial environment

Bus terminals integrated ESD protections and hot-swap capability.

Reliable data transmissions in noisy environments

Failsafe receiver and data integrity to ensure reliable communication.

Cost-effective solution for telecom infrastructure

ST’s RS485 products are pin-to-pin compatible with competing models, for an easy swap.

Discover our offer

ST4E1240

40 Mbps, 3.3 V / 5 V RS485 transceiver with ± 12 kV IEC 61000-4-2 contact ESD protection.

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ST4E1216

16 Mbps, 3.3 V / 5 V RS485 transceiver with ± 12 kV IEC 61000-4-2 contact ESD protection.