Exar – XR33152/56/58: ±60V Fault Tolerant 3.0V to 5.5V TIA-485/TIA-422 Transceivers


The XR33152/XR33156/XR33158 is a high performance TIA-485/TIA-422 transceiver family designed for improved performance in noisy industrial environments and increased tolerance to system faults. The analog bus pins can withstand direct shorts up to ±60V and are protected against ESD events up to ±15kV HBM. An extended ±25V common mode operating range allows for more reliable operation in noisy environments. The family includes several inherent protection features including overload protection and enhanced receiver fail-safe protection for open, shorted, or terminated-but-idle data lines.


  • ±60V fault tolerance on analog bus pins
  • Extended ±25V common mode operation
  • 1.65V to 5.5V logic interface VL pin (XR33156)
  • Cable invert pin
  • Hot-swap glitch protection on DE and RE pins (XR33156)
  • XR33152 250kbps half duplex
  • XR33156 20Mbps full duplex
  • XR33158 20Mbps half duplex
  • Enhanced receiver fail-safe protection for open, shorted or terminated-but-idle data lines
  • Driver short circuit current limit and thermal shut-down for overload protection