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NXP KM3x Series Precision Metrology Microcontrollers (MCUs)

Based on Arm® Cortex®-M0+

With Metrology as a key component to Electric Vehicle Charging, NXP’s KM35 MCus can help:

  • Enabling single-chip 1-, 2- and 3-phase metering designs
  • AFE, Security and HMI. Single crystal implementation
  • Single point of calibration during manufacture
  • Highest accuracy metrology with regional feature support
  • Multiple ƩΔ ADCs with PGA
  • Supports neutral disconnect use case
  • Compliance with WELMEC/OIML recommendations
  • Memory and peripheral protection
  • Hardware tamper detect with time stamping
  • Low-power RTC, battery backup with tamper memory

The KM3x series enables high accuracy, secure 1-, 2- and 3-phase electricity metering solutions, as well as flow meter and other precision measurement applications, through powerful analog front end (AFE), rich security protection and HMI functionality.

KM3x Functional Modules on the chip