​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. Applications * 4-20mA industrial Sensors and Transmitters * Industrial Pressure, Temperature, Flow, and Level Sensors/Transmitters * Medical Pressure, Temperature, and Flow Sensors * 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 https://elecena.pl/product/22323659/ultra-low-power-arm-cortex-m4f-with-precision-analog-front-end-for-industrial-and-medical-sensors 2022-12-27 https://elecena.pl/product/22323659/ultra-low-power-arm-cortex-m4f-with-precision-analog-front-end-for-industrial-and-medical-sensors 2025-01-21