MxL83235

The MxL83235 and MxL83236 are high-performance RS-485 / RS-422 transceivers designed to meet demanding system requirements. They support a wide operating supply range (from 3.0V to 5.5V) and deliver maximum data rates of 20Mbps and 50Mbps, respectively. Both devices feature a flexible I/O logic supply from 1.65V to 5.5V, simplifying multi-voltage system interfacing. A selectable slew-rate control pin enables reduced EMI and limits data rates to 500kbps when required.

The receivers incorporate enhanced fail-safe circuitry, ensuring a logic-high output when inputs are open, shorted, or idle. With an input impedance of at least 96k (1/8 unit load), the devices allow up to 256 nodes on the bus. The

drivers include short-circuit protection, thermal shutdown, and maintain high impedance during shutdown or power-off.

Additional features include hot-swap circuitry on DE and RE pins to prevent bus glitches during power-up or live insertion, and a low-power shutdown mode that reduces supply current to 1A. Both devices are half-duplex and

• Meets or exceeds the requirements of the TIA/EIA-485A standard

• Supports 1.65V to 5.5V I/O logic interface VL pin

• Maximum data rate of 20Mbps/50Mbps. Slew limiting data rate of 500kbps

• Wide supply range from 3.0V to 5.5V

• Differential output exceeds 2.1V for PROFIBUS compatibility with a 5V supply

• Extended operating temp range from –40°C to 125°C

• Hot swap glitch protection on DE and RE Pins

• Extended operational common-mode range of ±15V

• Low-power shutdown mode

• Enhanced failsafe protection for open, short, idle

• 1/8 unit load (256 bus nodes)

• Small form factor MSOP and DFN packages

• Glitch-free power-up/down capability

• Robust system protection

  • ±4kV EFT (IEC 61000-4-4)

  • ±8kV ESD Contact (IEC 61000-4-2)

  • ±15kV ESD Airgap (IEC 61000-4-2)

  •  ±15kV ESD Human Body Model (HBM)

• Industrial control systems

• High-performance electric motor drives

• Industrial and single board computers

• Smart Grid

• Building security and automation

• Industrial and process control equipment

• HVAC Equipment

• Portable Internet of Things