STMicroelectronics

ST4E1240 High-Speed RS485 Transceiver

STMicroelectronics' low-power differential line transceiver is designed for data transmission standard RS485 applications

Image of STMicroelectronics ST4E1240 High-Speed RS485 TransceiverSTMicroelectronics' ST4E1240 is a low-power differential line transceiver for data transmission standard RS485 applications in half-duplex mode, compatible with either 3.3 V or 5 V rail power supplies, fully operating from 3 V to 5.5 V.

The ST4E1240 operates up to 40 Mbps. It is ideal for multipoint applications over extended cable runs. It is robust to ESD transients. In particular, the bus pins support ±12 kV IEC 61000-4-2 contact discharge. It features robust hot-swap capability when switching on and off or during hot insertion. It is available in the standard SO-8 package and operates at a -40°C to +85°C temperature range.

Features
  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • 3 V to 5.5 V supply voltage
  • Differential output voltage (VOD) exceeds 2.1 V at 5 V supply for PROFIBUS compatibility
  • High speed: up to 40 Mbps data rate
  • More than 64 transceivers on the bus (up to 100 nodes)
  • Low quiescent current in shutdown mode
  • -40°C to +85°C operating temperature
  • Available in industry-standard SO-8
  • Integrated protections
    • Fail-safe receiver (bus open, idle, and shorted)
    • Thermal shutdown protection
    • Hot swap capability (with parasitic capacitance up to 100 pF)
    • Bus I/O ESD protection
      • ±12 kV IEC61000-4-2 contact discharge
      • ≥ ±8 kV HBM ESD
      • ±4 kV IEC61000-4-4 Class-A fast transient burst (EFT)

ST4E1240 High-Speed RS485 Transceiver

图片制造商零件编号描述类型协议驱动器/接收器数可供货数量价格查看详情
SO 08 .15 JEDECST4E1240DTSO 08 .15 JEDEC收发器RS4851/12366 - 立即发货$17.24查看详情
发布日期： 2024-05-07