Maxim Integrated MAX3262x ARM Cortex-M4F microcontroller. 32-bit RISC (M4 plus floating point unit) microcontroller. It is well-suited for emerging categories of medical and fitness applications. The architecture combines high efficiency, signal processing capabilities with low cost and ease of use.
The device has 4 powerful and flexible power modes. Built-in dynamic clock gating and firmware-controlled power gating minimize power consumption in any application. Multiple SPI, UART and I2C serial interfaces as well as 1-Wire host and USB allow interconnection to various external sensors. A four-input 10-bit ADC with optional reference is provided.
The MAX32621 is a more secure version of the MAX32620 and integrates a Trust Protection Unit (TPU) with encryption and advanced security features.