ISO K Line Serial Link Interface

MC33660 Block Diagram

MC33660 Block Diagram

MC33660 is designed to interface between the vehicle’s on-board MCU and systems off-board the vehicle via the special ISO K line. It features an ISO K Line pin protected against shorts to battery and meets the diagnostic system ISO9141 specification.

It is a serial link bus interface device designed to provide bi-directional half-duplex communication interfacing in automotive diagnostic applications.

Why Used

  • Interfaces directly to standard CMOS microprocessors
  • Operates over a wide supply voltage of 8.0 V to 18 V
  • Operating temperature of -40 °C to 125 °C
  • 8.0 kV ESD protection attainable with few additional components
  • Thermal shutdown with hysteresis

Where Used

  • Automotive systems
  • Industrial equipment
  • Robotic equipment
  • Applications where module-to-module communications are required
  • Marine and aircraft networks

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