Click here to ask about the production status of specific part numbers. MAX32675 Ultra-Low-Power Arm Cortex-M4F with Precision Analog Front-End for Industrial and Medical Sensors General Description Benefits and Features The MAX32675 is a highly integrated, mixed-signal, ultra- Low-Power, High-Performance for Industrial low-power microcontroller for industrial applications and Applications is especially suitable for 4-20mA loop-powered sensors 100MHz Arm Cortex-M4 with FPU and transmitters. It is based on an ultra-low-power Arm 384KB Internal Flash Cortex - M4 with Floating Point Unit (FPU) and includes 160KB SRAM 384KB of flash and 160KB of SRAM. Error correction cod- 128kB ECC Enabled ing (ECC), capable of single error correction, double er- 44.1A/MHz ACTIVE Mode at 0.9V up to 12MHz ror detection (SEC-DED), is implemented over the entire Coremark flash, SRAM, and cache to ensure ultra-reliable code ex- 64.5A/MHz ACTIVE Mode at 1.1V up to 100MHz ecution for demanding applications. An analog front-end Coremark (AFE) provides two 12-channel delta-sigma (-) ADCs 2.84A Full Memory Retention Current in BACKUP with features and specifications optimized for precision Mode at V = 3.3V DDIO sensor measurement. Each - ADC can digitize external Ultra-Low-Power Analog Peripherals analog signals as well as system temperature. A PGA with Smart Integration Reduces BOM, Cost, and PCB Size gains of 1x to 128x precedes each ADC. ADC outputs can Two - ADCs be optionally converted on the fly from integer to single- 12 Channels, Assignable to Either ADC precision floating-point format. A 12-bit DAC is also includ- Flexible Resolution and Sample Rates ed. The device also provides robust security features such 24 Bits at 0.4ksps as an AES Engine, TRNG, and secure boot. 16 Bits at 4ksps 12-Bit DAC Applications On-Die Temperature Sensor 4-20mA Industrial Sensors and Transmitters Digital Peripherals Industrial Pressure, Temperature, Flow, and Level SPI (M/S) Sensors/Transmitters 2 Up to Two I C Medical Pressure, Temperature, and Flow Sensors Up to Two UARTs Up to 23 GPIOs Timers Up to Five 32-Bit Timers Two Windowed Watchdog Timers 8-Channel Standard DMA Controller 2 One I S 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, -40C to +105C Operating Temperature Range Ordering Information appears at end of data sheet. Arm and Cortex are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere. CoreMark is a registered trademark of EEMBC. Motorola is a trademark of Motorola Trademark Holdings, LLC. 19-101211 Rev 0 8/21MAX32675 Ultra-Low-Power Arm Cortex-M4F with Precision Analog Front-End for Industrial and Medical Sensors Simplified Block Diagram MAX32675 100MHz (IPO) HFXOUT SERIAL WIRE DEBUG HOST 16MHz TO 32MHz (ERFO) HFXIN (SWD) Arm Cortex M4 WITH FPU GPIO AND SHARED PAD CPU 7.3728MHz (IBRO) FUNCTIONS 4 x 32-BIT TIMER 80kHz (INRO) NVIC SINGLE-WIRE DEBUG 32-BIT, LOW-POWER TIMER GPIO/ POR, MEMORY TIMER LOW-POWER TIMER SPECIAL BROWNOUT SPI FLASH FUNCTION RSTN MONITOR, 2 SUPPLY VOLTAGE 384KB I C UP TO 23 SPI MASTER/SLAVE MONITORS ERROR 2 I S CORRECTION UART 2 (SEC-DED) 2 x I C MASTER/SLAVE EXT CLK INPUT/OUTPUT VDDIO 2 V SRAM I S SLAVE DD18 EXTERNAL INTERRUPTS 160KB (PLAIN) VCORE REGULATOR/ 128KB (SEC-DED) V 2 x 4-WIRE UART DDA POWER CONTROL VREG1 V SS 16KB CACHE VSSA BUFFER ANALOG SECURITY 8-CH STANDARD DMA DAC12 OUT CONTROL/DATA 12-BIT DAC AES-128/192/256 (4-WIRE SPI) 32-BIT CRC 2 WATCHDOG TIMER ACCELERATOR VREF SECURE NV KEY INT REF (1.024V,1.5V, 2.048V, 2.5V) SECURE BOOTLOADER TRUE RANDOM NUMBER GENERATOR (TRNG) V DDA BUFFER REF1P BUFFER REF1N ANALOG FRONT-END (AFE) REF0P BUFFER REF0N BUFFER V DDA 10A TO 1600A BUFFER AIN0 AIN1 16-/24-BIT, - 3RD- ADCO RDY PGA AIN2 ORDER MODULATOR AIN3 ADC0 AIN4 BUFFER AIN5 AIN6 BUFFER AIN7 AIN8 AIN9 16-24-BIT, - 3RD- AIN10 ADC1 RDY PGA ORDER MODULATOR AIN11 ADC1 BUFFER TEMP SENSOR V BIAS www.maximintegrated.com Maxim Integrated 2 CAP0N CAP0P BUS MATRIX AHB, APB, IBUS, DBUS CAP1N CAP1P ADC0 REF MUX ADC1 REF MUX