Analog Devices / Maxim Integrated MAX32630, MAX32631, & MAX32632 32-Bit DARWIN MCUs

Analog Devices MAX32630, MAX32631, and MAX32632 32-Bit DARWIN Microcontrollers (MCU) are designed to provide maximum performance with minimal power consumption. These MCUs feature an Arm® Cortex®-M4 with FPU CPU that delivers ultra-low power, high-efficiency signal processing functionality with significantly reduced power consumption and ease of use. Flexible power modes, an intelligent peripheral management unit (PMU), dynamic clock gating, and firmware-controlled power gating optimize power for the specific application. Multiple SPI, UART, I2C, 1-Wire® master, and USB interfaces are provided. The four-input, 10-bit ADC with selectable references can monitor external sensors.

The MAX32631 and MAX32632 are secure versions of the MAX32630. The MAX32631 and MAX32632 provide a Trust Protection Unit (TPU) with encryption and advanced security features. These features include a Modular Arithmetic Accelerator (MAA) for fast ECDSA, a true Random Number Generator, and a hardware AES engine. The MAX32632 also provides a secure bootloader for additional security and life-cycle management. The Analog Devices MAX32630, MAX32631, & MAX32632 32-Bit DARWIN MCUs are available in WLP-100 and TQFP-EP-100 packages with a -20°C to +85°C operating temperature range.


  • High-efficiency microcontroller for wearable devices
    • Internal oscillator operating at up to 96MHz
    • Low power 4MHz oscillator system clock option for always-on monitoring applications
    • 2MB Flash memory
    • 512KB SRAM
    • 8KB instruction cache
    • 2V CPU core supply voltage
    • 8V to 3.3V I/O
    • Optional 3V ±5% USB supply voltage
  • Power management maximizes uptime for battery applications
    • 106μA/MHz active current executing from cache
    • Wakeup to 96MHz clock or 4MHz clock
    • 600nA Low Power Mode (LP0) current with RTC enabled
    • 5μW/MHz ultra-low power data retention sleep mode (LP1) with fast 5μs wakeup to 96MHz
  • Secure valuable IP and data with robust internal hardware security (MAX32631 and MAX32632 only)
    • Trust Protection Unit (TPU) including MAA Supports ECDSA and modular arithmetic
    • True Random Number Generator
    • AES-128, AES-192, AES-256
    • Secure bootloader (MAX32632 only)
  • Optimal peripheral mix provides platform scalability
    • SPIX Execute in Place (XIP) engine for memory expansion with minimal footprint
    • Up to three SPI Masters, one SPI slave
    • Four UARTs
    • Up to three I2C masters, one I2C slave
    • 1-wire master
    • Full-speed USB 2.0 engine with internal transceiver
    • Sixteen pulse train (PWM) engines
    • Six 32-bit timers and 3 watchdog timers
    • Up to 66 general-purpose I/O pins
    • One 10-Bit delta-sigma ADC operating at 8ksps
    • RTC calibration output
  • Physical characteristics
    • -20°C to +85°C operating temperature range
    • Package options
      • WLP-100
      • TQFP-EP-100
    • Pb-free and RoHS compliant


  • Sports watches
  • Fitness monitors
  • Wearable medical patches
  • Portable medical devices
  • Sensor hubs
  • IoT


Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX32630, MAX32631, & MAX32632 32-Bit DARWIN MCUs
Pubblicato: 2016-05-16 | Aggiornato: 2023-04-13