General Description

The MAX32625/MAX32626 is an ARM? Cortex?-M4F 32-bit microcontroller with an unconnected point unit, 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.

Benefits and 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

? ?? Wake-Up 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 Wake-Up 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

● Sports Watches

● Fitness Monitors

● Wearable Medical Patches

● Portable Medical Devices

● Sensor Hubs