ST4485EB:3.3 V powered, 15 kV ESD protected, up to 20 Mbps RS-485/RS-422 transceiver, [-40oC, 105oC] temperature range

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
Product Specifications
DescriptionVersionSize
DS9898: 3.3 V powered, 15 kV ESD protected, up to 20 Mbps RS-485/RS-422 transceiver2.0387 KB
Application Notes
DescriptionVersionSize
AN1348: ST485: an RS-485 based interface with lower data bit errors3.2112 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
ST4485EBDRSO-8Tape And Reel-40105-1.511000NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
ST4485EBDRSO-8IndustrialEcopack3md_o7-wspc-so-wspc-08-wspc-.15jedec_5ko7-wspc-uw23jc2.pdf
md_o7-wspc-so08-wspc-.xml
3.3 V powered, 15 kV ESD protected, up to 20 Mbps RS-485/RS-422 transceiver ST4485EB
ST485: an RS-485 based interface with lower data bit errors ST26C31B
STEVAL-SPIMD20V1 demonstration kit based on the SPIMD20 integrated motor drive STEVAL-SPIMD20V1
md_o7-wspc-so-wspc-08-wspc-.15jedec_5ko7-wspc-uw23jc2.pdf ST4485EB
md_o7-wspc-so08-wspc-.xml LM217L