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Maxim’s New Ultra-Low Power, High-Performance MCUs Simplify Wearables Design

MAX32630 and MAX32631

Maxim Integrated Products streamline designer’s high-performance fitness and medical wearable devices development with its new enhanced MAX32630 and MAX32631 ARM Cortex-M4F microcontrollers.

New complex demands are seen with vigorous growing personal wellness and medical wearable applications. With innovative market need, internal electronic components are getting smaller, yet matching high functionality, processing capability, and optimal integration of peripherals. Devices must also have high accuracy and low noise, as well as extremely low power dissipation in various operational modes to ensure sufficient operating life on a single charge. Maxim’s MAX32630 and MAX32631 microcontrollers are claimed to address these concerns with a variety of features.

The new range arms sophisticated power management which maximizes run time and provides the lowest energy consumption in the industry of active (127uW/MHz), DMA (32uW/MHz), and retention sleep (3.5uW) modes.

The new MCUs offer abundant onboard code (2MB flash), data (512KB SRAM), and cache (8KB) memory, which facilitate running third-party applications and logging sensor data, thereby improving the overall user experience. Interfaces include SPI, SPI XIP, UART, I2C, 1-Wire, and USB ports.

Peripheral functions include six 32-bit timers, clock, 66 general-purpose I/O pins, pulse train engine, and 10-bit analog/digital converter (7.8ksps). The MAX32631 adds a trust protection unit (TPU) that enables advanced hardware encryption and authentication features, providing customers with a complete security toolbox to protect IP, algorithms, and user data.

Key Advantages

  • Powerful processor: Fast Cortex-M4F 32-bit microcontroller core with floating-point unit
  • Ultra-low power: 127uW/MHz full-active and 3.5μW sleep modes extend battery life
  • Small form factor: Space saving 37mm × 4.37mm 100-ball WLP package
  • Secure: Robust hardware security with onboard trust protection unit

The MAX32630 and secure MAX32631 extend Maxim’s scalable memory architecture microcontroller portfolio for wearables, which includes the MAX32620 and secure MAX32621 with 2MB flash memory and 256KB SRAM, and MAX32625 and secure MAX32626 with 512KB flash memory and 160KB SRAM. All products operate over the -20 degree Celsius to +85 degree Celsius temperature range.

“The combination of ultra-low power, high performance, and small footprint of the MAX32630 and MAX32631 offers designers a robust solution that has been architected ground up for wearable medical and fitness products,” said Prem Nayar, Director, Medical & Wearables Micros, Maxim Integrated. “The family of MAX326 microcontrollers provides sensor fusion, flexible design, and connectivity to further enhance the user experience.”

“With Maxim’s low-power microcontrollers for wearables, we have been able to add more features to Garmin’s high-performance wearables while maintaining the same battery life,” said Justin of Garmin International.

Availability and Pricing

  • An evaluation kit is available: MAX32630-EVKIT
  • MAX32630-EVKIT pricing starts at $150.00
  • MAX32630 pricing starts at $6.66 (1000-up, FOB USA)

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