Features and Benefits

  • Low-Power, High-Performance for Industrial Applications
    • 100MHz Arm Cortex-M4 with FPU
    • 384KB Internal Flash
    • 160KB SRAM
      • 128kB ECC Enabled
    • 44.1μA/MHz ACTIVE Mode at 0.9V up to 12MHz Coremark®
    • 64.5μA/MHz ACTIVE Mode at 1.1V up to 100MHz Coremark
    • 2.84μA Full Memory Retention Current in BACKUP Mode at VDDIO = 3.3V
    • Ultra-Low-Power Analog Peripherals
  • Smart Integration Reduces BOM, Cost, and PCB Size
    • Two Δ-Σ ADCs
      • 12 Channels, Assignable to Either ADC
      • Flexible Resolution and Sample Rates
        • 24 Bits at 0.4ksps
        • 16 Bits at 4ksps
    • 12-Bit DAC
    • On-Die Temperature Sensor
    • Digital Peripherals
      • SPI (M/S)
      • Up to Two I2C
      • Up to Two UARTs
      • Up to 23 GPIOs
    • Timers
      • Up to Five 32-Bit Timers
      • Two Windowed Watchdog Timers
    • 8-Channel Standard DMA Controller
    • One I2S Slave for Digital Audio Interface
  • Robust Security and Reliability
    • TRNG Compliant to SP800-90B
    • Secure Nonvolatile Key Storage and AES-128/192/256
    • Secure Bootloader to Protect IP/Firmware
    • Wide, -40°C to +105°C Operating Temperature Range

Product Details

​The MAX32675 is a highly integrated, mixed-signal, ultra-low-power microcontroller for industrial applications and is especially suitable for 4-20mA loop-powered sensors and transmitters. It is based on an ultra-low-power Arm® Cortex®- M4 with Floating Point Unit (FPU) and includes 384KB of flash and 160KB of SRAM. Error correction coding (ECC), capable of single error correction, double error detection (SEC-DED), is implemented over the entire flash, SRAM, and cache to ensure ultra-reliable code execution for demanding applications.

An analog front-end (AFE) provides two 12-channel delta-sigma (Δ-Σ) ADCs with features and specifications optimized for precision sensor measurement. Each Δ-Σ ADC can digitize external analog signals as well as system temperature. A PGA with gains of 1x to 128x precedes each ADC. ADC outputs can be optionally converted on the fly from integer to single-precision floating-point format. A 12-bit DAC is also included.

The device also provides robust security features such as an AES Engine, TRNG, and secure boot.


  • 4-20mA industrial Sensors and Transmitters
  • Industrial Pressure, Temperature, Flow, and Level Sensors/Transmitters
  • Medical Pressure, Temperature, and Flow Sensors

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.