ST485ERB Series

15 kV ESD protected, low power RS-485/RS-422 transceiver

Catalog

15 kV ESD protected, low power RS-485/RS-422 transceiver

Part	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Data Rate	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Protocol	Type	Duplex	Receiver Hysteresis	Package / Case	Package / Case [y]	Package / Case [x]	Package / Case	Package / Case
STMicroelectronics ST485BD	Surface Mount	85 °C	-40 °C	2.5 Mbps	4.75 V	5.25 V	8-SOIC	RS422 RS485	Transceiver	Half	70 mV	8-SOIC	3.9 mm	0.154 in
STMicroelectronics ST485ERXDR	Surface Mount	85 °C	-40 °C	2.5 Mbps	4.75 V	5.25 V	8-SOIC	RS422 RS485	Transceiver	Half	70 mV	8-SOIC	3.9 mm	0.154 in
STMicroelectronics ST485ECDR	Surface Mount	70 °C	0 °C	5 MBd	4.75 V	5.25 V	8-SOIC	RS422 RS485	Transceiver	Half	70 mV	8-SOIC	3.9 mm	0.154 in
STMicroelectronics ST485ABN	Through Hole	85 °C	-40 °C	50 Mbps	4.5 V	5.5 V	8-DIP	RS422 RS485	Transceiver	Half	70 mV	8-DIP			0.3 in	7.62 mm
STMicroelectronics ST485CDR	Surface Mount	70 °C	0 °C	2.5 Mbps	4.75 V	5.25 V	8-SOIC	RS422 RS485	Transceiver	Half	70 mV	8-SOIC	3.9 mm	0.154 in
STMicroelectronics ST485EBN	Through Hole	85 °C	-40 °C	5 MBd	4.75 V	5.25 V	8-DIP	RS422 RS485	Transceiver	Half	70 mV	8-DIP			0.3 in	7.62 mm
STMicroelectronics ST485ERBDR	Surface Mount	85 °C	-40 °C	2.5 Mbps	4.75 V	5.25 V	8-SOIC	RS422 RS485	Transceiver	Half	70 mV	8-SOIC	3.9 mm	0.154 in
STMicroelectronics ST485ECN	Through Hole	70 °C	0 °C	5 MBd	4.75 V	5.25 V	8-DIP	RS422 RS485	Transceiver	Half	70 mV	8-DIP			0.3 in	7.62 mm
STMicroelectronics ST485ERBN	Through Hole	85 °C	-40 °C	2.5 Mbps	4.75 V	5.25 V	8-DIP	RS422 RS485	Transceiver	Half	70 mV	8-DIP			0.3 in	7.62 mm

Catalog

15 kV ESD protected, low power RS-485/RS-422 transceiver

Key Features

• ESD protection:

- ± 15 kV (HBM)

- ± 8 kV (IEC-1000-4-2 contact discharge)

Description

The ST485ERB 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 (HBM) ± 8 kV (IEC-1000-4-2 contact discharge) shocks, without latch-up. These parts contain one driver and one receiver. This transceiver draws 300 µA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5 V supply. The driver is a short-circuit current which is limited and protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The ST485ERB is designed for bi-directional data communication on multipoint bus transmission lines (half-duplex applications).