MAX32625

Ultra-Low Power, High-Performance ARM Cortex-M4F Microcontroller for Wearables

Ultra-Low Power Cortex-M4F Ideally Suited for Emerging Wearable Medical and Fitness Applications


Description

The MAX32625/MAX32626 is a 32-bit RISC ARM® Cortex®-M4 with FPU-based microcontroller, ideal for the emerging category of wearable medical and fitness applications. The architecture combines ultra-low power, high-efficiency signal processing functionality and ease of use. An internal 96MHz oscillator provides high-performance capability, and the internal 4MHz oscillator supports minimal power consumption for applications requiring always-on monitoring. The device provides 512kB of flash and 160kB of SRAM.

The device features four powerful and flexible power modes. A peripheral management unit (PMU) enables intelligent peripheral control with up to six channels to significantly reduce power consumption. Built-in dynamic clock gating and firmware-controlled power gating allows the user to optimize power for the specific application.

Multiple SPI, UART, and I2C serial interfaces are provided, as well as a 1-Wire® master and USB, allowing for interconnection to a wide variety of external sensors.

A four-input, 10-bit delta-sigma ADC monitors analog input from external sensors.

The MAX32625L is a lower-cost version of the MAX32625, providing 256kB of flash and 128kB of SRAM.

The MAX32626 is a secure version of the MAX32625. It incorporates a trust protection unit (TPU) with encryption and advanced security features. These features include a modular arithmetic accelerator (MAA) for ECDSA, a hardware PRNG entropy generator, and a secure boot loader. Both the MAX32626 and the MAX32625 provide a hardware AES engine.
MAX32625, MAX32626: Simplified Block Diagram MAX32625, MAX32626: Simplified Block Diagram Enlarge+

Key Features

  • High-Efficiency Microcontroller for Wearable Devices
    • Internal Oscillator Operates Up to 96MHz
    • Low Power 4MHz Oscillator System Clock Option for Always-On Monitoring Applications
    • 512KB Flash Memory (256KB "L" Version)
    • 160KB SRAM (128KB "L" Version)
    • 8KB Instruction Cache
    • 1.2V Core Supply Voltage
    • 1.8V to 3.3V I/O
    • Optional 3.3V ±5% USB Supply Voltage
    • Wide Operating Temperature: -30°C to +85°C
  • Power Management Maximizes Uptime for Battery Applications
    • 106µA/MHz Active Current Executing from Cache
    • 49µA/MHz Active Current Executing from Flash
    • Wakeup to 96MHz Clock or 4MHz Clock
    • 600nA Low Power Mode (LP0) Current with RTC Enabled
    • 2.56µW Ultra-Low Power Data Retention Sleep Mode (LP1) with Fast 5μs Wakeup on 96MHz Clock Source
    • 27µA/MHz Low Power Mode (LP2) Current
  • Optimal Peripheral Mix Provides Platform Scalability
    • SPI Execute in Place (SPIX) Engine for Memory Expansion with Minimal Footprint
    • Three SPI Masters, One SPI Slave
    • Three UARTs
    • Up to Two I2C Masters, One I2C Slave
    • 1-Wire Master
    • Full-Speed USB 2.0 Device with Internal Transceiver
    • Sixteen Pulse Train (PWM) Engines
    • Six 32-Bit Timers and 3 Watchdog Timers
    • Up to 40 General-Purpose I/O Pins
    • 10-Bit Delta-Sigma ADC Operating at 7.8ksps
    • AES -128, -192, -256
    • CMOS-Level 32kHz RTC Output Available in All Power Modes
  • Secure Valuable IP and Data with Robust Internal Hardware Security (MAX32626 Only)
    • Trust Protection Unit (TPU) Provides ECDSA and Modular Arithmetic Acceleration Support
    • PRNG Seed Generator
    • Secure Boot Loader

Applications/Uses

  • Fitness Monitors
  • Portable Medical Devices
  • Sensor Hubs
  • Sports Watches
  • Wearable Medical Patches
Part Number MCU Core Core Clock Speed
(MHz)
Data Processing Internal Flash
(KBytes)
Internal SRAM
(KBytes)
USARTs SPI Bus I2C Bus USB GPIO Pins PWM Timer Features Package/Pins Budgetary
Price
max max See Notes
MAX32625 NEW! ARM Cortex-M4F 96 32-bit 512 160 3 3 2 Master & 1 Slave 1 x 2.0 FS Device 40 6
Capture/Compare
RTC
Wake Up Timer
Watchdog
Windowed Watchdog
WLP/63
$4.52 @5k
MAX32626 NEW!
WLP/63
$4.98 @5k
See All Microcontrollers (48)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX32625-EVKIT: Evaluation Kit for the MAX32625 and MAX32626
MAX32626-EVKIT: Evaluation Kit for the MAX32625 and MAX32626
MAX32625NEXPAQ: MAX32625 Development Board for Nexpaq System

Technical Documents

User Guide 6350 MAX32625 User's Guide

Quality and Environmental Data

Request Reliability Report for: MAX32625 
Lead-Free Package Tin (Sn) Whisker Reports

Related Resources


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MAXREFDES155#: DeepCover Embedded Security in an IoT: Public-Key Secured Data Paths


MAX32552
DeepCover Secure Cortex-M3 Flash Microcontroller

  • ARM® Cortex M3 Processor Core Allows for Easy Integration into Applications
  • Security Features Facilitate System-Level Protection
  • Integrated Peripherals Reduce External Component Count

MAXQ1061
DeepCover Cryptographic Controller for Embedded Devices

  • Advanced Cryptographic Tool Box Seamlessly Supports Highly Secure Key Storage
  • High-Level Functions Simplify SSL/TLS/DTLS Implementations
  • Extensive Host/System Services Increase Flexibility and Reduce System Cost

MAX32625
Ultra-Low Power, High-Performance ARM Cortex-M4F Microcontroller for Wearables

  • High-Efficiency Microcontroller for Wearable Devices
  • Power Management Maximizes Uptime for Battery Applications
  • Optimal Peripheral Mix Provides Platform Scalability

MAX32626
Ultra-Low Power, High-Performance ARM Cortex-M4F Microcontroller for Wearables

  • High-Efficiency Microcontroller for Wearable Devices
  • Power Management Maximizes Uptime for Battery Applications
  • Optimal Peripheral Mix Provides Platform Scalability

Type ID PDF Title
User Guide 6350 MAX32625 User's Guide
Type ID Title
Evaluation Board9207MAX32625NEXPAQ MAX32625 Development Board for Nexpaq System
Evaluation Board9170MAX32625-EVKIT Evaluation Kit for the MAX32625 and MAX32626
Evaluation Board9170MAX32626-EVKIT Evaluation Kit for the MAX32625 and MAX32626