Features and Benefits

  • MAX32655 Microcontroller
    • Arm Cortex-M4F, 100MHz
    • 32-Bit RISC-V Coprocessor to Offload Timing-Critical Bluetooth Processing
    • 512KB Flash Memory
    • 128KB SRAM
    • 16KB Cache
    • Bluetooth 5.2 LE Radio
    • MAX20303 Wearable PMIC with Fuel Gauge
    • Charge from USB
    • On-Board DAPLink Debug and Programming Interface for Arm Cortex-M4F
    • Breadboard Compatible Headers
    • Micro USB Connector
    • Micro SD Card Connector
  • Integrated Peripherals
    • RGB Indicator LED
    • User Pushbutton
    • Low-Power Stereo Audio CODEC
    • Digital Microphone
    • SWD Debugger
    • Virtual UART Console

Product Details

The MAX32655FTHR is a rapid development platform to help engineers quickly implement ultra low-power wireless solutions using MAX32655 Arm© Cortex®-M4F and Bluetooth® 5.2 Low Energy (LE). The board also includes the MAX20303 PMIC for battery and power management. The form factor is a small 0.9in x 2.6in dual-row header footprint that is compatible with Adafruit Feather Wing peripheral expansion boards. The board includes a variety of peripherals, such as a digital microphone, low power stereo audio CODEC, 128MB QSPI Flash, micro SD card connector, RGB indicator LED, and pushbutton. The MAX32655FTHR provides a power-optimized flexible platform for quick proof-of-concepts and early software development to enhance time to market.


  • Asset Tracking
  • Fitness/Health and Medical Wearables
  • Hearables
  • Industrial Sensors
  • Wireless Computer Peripherals and I/O Devices