ISO K Line Serial Link Interface

MC33660

The NXP® MC33660 is a serial link bus interface device designed to provide bi-directional half-duplex communication interfacing in automotive diagnostic applications.

  • Designed to interface between the vehicle’s on-board MCU and systems off-board the vehicle via the special ISO K line
  • Meets the Diagnostic System ISO9141 specification
  • The device’s K line bus driver’s output is fully protected against bus shorts and over-temperature conditions

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Block Diagram

MC33660 Simplified Application Drawing

MC33660 Simplified Application Drawing
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Features

Key Features

  • Operates Over Wide Supply Voltage of 8.0 to 18 V
  • Operating Temperature of -40 to 125 °C
  • Interfaces Directly to Standard CMOS Microprocessors
  • ISO K Line Pin Protected Against Shorts to Battery
  • Thermal Shutdown with Hysteresis
  • ISO K Line Pin Capable of High Currents
  • ISO K Line Can Be Driven with up to 10 nF of Parasitic Capacitance
  • 8.0 kV ESD Protection Attainable with Few Additional Components
  • Standby Mode: No VBat Current Drain with VDD at 5.0 V
  • Low Current Drain During Operation with VDD at 5.0 V

Product Longevity Program

  • This product is included in NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MC33660 is included in the 15-year program

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