ST485EB:15 kV ESD protected, low power RS-485/RS-422 transceiver, [-40oC, 85oC] temperature range

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.

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.

Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that place the driver outputs into a high-impedance state.

The ST485E is designed for bi-directional data communications on multipoint bus transmission lines (half-duplex applications).

Key Features

  • Allows up to 256 transceivers on the bus
  • ESD protection: ±15 kV (H.B.M.) ±8 kV (IEC-1000-4-2 contact discharge)
  • Operates from a single 5 V supply
  • 30 ns propagation delay, 5 ns skew
  • Low quiescent current: 300 µA
  • -7 V to 12 V common mode input voltage range
  • Designed for RS-485 interface application
  • 70 mV typical input hysteresis
  • Current limiting and thermal shutdown for driver overload protection
  • Driver maintains high impedance in 3-state or with the power OFF
Product Specifications
DescriptionVersionSize
DS2530: +/-15 kV ESD protected, low power RS-485/RS-422 transceiver14.2698 KB
Application Notes
DescriptionVersionSize
AN1690: Fail-safe biasing for ST485EB2.3269 KB
AN1348: ST485: an RS-485 based interface with lower data bit errors3.2112 KB
AN1702: ST485EB for e-meter applications2.3153 KB
Brochures
DescriptionVersionSize
Products and Solutions for Factory Automation and Control1.03 MB
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)AutoshutdownUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
ST485EBDRSO-8Tape And Reel-4085-0.821000NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
ST485EBDRSO-8IndustrialEcopack3md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_1ko7-wspc-uf75jc5.pdf
md_o7-wspc-so-wspc-08-wspc-.xml
+/-15 kV ESD protected, low power RS-485/RS-422 transceiver ST485EX
Fail-safe biasing for ST485EB ST485EB
ST485: an RS-485 based interface with lower data bit errors ST26C31B
ST485EB for e-meter applications ST485EB
STEVAL-SPIMD20V1 demonstration kit based on the SPIMD20 integrated motor drive STEVAL-SPIMD20V1
md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_1ko7-wspc-uf75jc5.pdf ST485EB
md_o7-wspc-so-wspc-08-wspc-.xml TS4871