MAX32675 Ultra-Low-Power Arm® Cortex®-M4F

ADI's MAX32675 is a highly integrated, mixed-signal, ultra-low-power microcontroller for industrial applications and is especially suitable for 4 mA to 20 mA loop-powered industrial and medical sensors and transmitters. It is based on an ultra-low-power Arm Cortex-M4 with a floating point unit (FPU) and includes 384 KB of Flash and 160 KB 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 and system temperature; a PGA with gains of 1x to 128x precedes each ADC. ADC outputs can be optionally converted from integer to single-precision floating-point format on the fly. A 12-bit DAC is also included.

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

The MAX32675EVKIT# evaluation kit (EV kit) provides a platform for the evaluation capabilities of the MAX32675 microcontroller. It contains an integrated, low-power HART modem, which enables the bidirectional transfer of digital data over a current loop to/from industrial sensors for configuration and diagnostics.