UBX100 Sub-GHz Wireless M-Bus Solution

  • This page contains information on a preproduction product. Specifications and information herein are subject to change without notice. For additional information contact support or your sales representative.

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Block Diagram


UBX100 Block Diagram


Key Features

  • Deep sleep down to 600 nA
  • RF transceiver supporting W-MBus modes S, C and T
  • Complemented by wireless M-Bus protocol stack, drivers and middleware with extensive examples for the MCX MCU series
  • Ultra-low RX power at 11 mA
  • Up to +14 dBm output power at 29 mA
  • Sensitivity up to -128 dBm at 4 kHz
  • SPI 2 Mbit/s (5wire)
  • HVQFN48 package (7 x 7 mm)
  • Operating temperature range: -40 °C to +85 °C

Wireless M-Bus Protocol Stack Features

  • Stackforce OMS® version 4.5.1 protocol stack for end devices is a proven software solution for metering applications
  • The stack implements all the protocol elements required for Wireless M-Bus compliance and covers a large part of the options and features specified in EN 13757 and its substandards. The stack is optimized for small footprint, excellent modularity and scalability


  • 109 dBm at 32.768 kbit/s @ 360 kHz BW
  • 106 dBm at 100 kbit/s @ 360 kHz BW

MCX Series Features

  • The MCX portfolio offers a comprehensive selection of general purpose to IIoT and application-specific Arm Cortex-M-based microcontrollers offering expanded scalability with breakthrough product capabilities, simplified system design and a developer-focused experience through the widely adopted MCUXpresso suite of software and tools.
    • Expanded scalability with MCUs up to 4 MB Flash and 1 MB SRAM
    • Low active power and leakage
    • Optimized for power-critical applications
    • Extra flexibility with a comprehensive peripheral offering


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