MAX32625/MAX32626 Ultra-Low Power, High-Performance ARM Cortex-M4F Microcontroller for Wearables General Description Benefits and Features The MAX32625/MAX32626 is an ARM Cortex -M4F High-Efficiency Microcontroller for Wearable Devices 32-bit microcontroller with an unconnected point unit, Internal Oscillator Operates Up to 96MHz ideal for the emerging category of wearable medical and Low Power 4MHz Oscillator System Clock Option for Always-On Monitoring Applications fitness applications. The architecture combines ultra- low power, high-efficiency signal processing functionality 512KB Flash Memory (256KB L Version) 160KB SRAM (128KB L Version) and ease of use. An internal 96MHz oscillator provides high-performance capability, and the internal 4MHz oscil- 8KB Instruction Cache 1.2V Core Supply Voltage lator supports minimal power consumption for applica- 1.8V to 3.3V I/O tions requiring always-on monitoring. The device provides Optional 3.3V 5% USB Supply Voltage 512kB of flash and 160kB of SRAM. Wide Operating Temperature: -30C to +85C The device features four powerful and flexible power Power Management Maximizes Uptime for Battery modes. A peripheral management unit (PMU) enables Applications intelligent peripheral control with up to six channels to 106A/MHz Active Current Executing from Cache significantly reduce power consumption. Built-in dynamic 49A/MHz Active Current Executing from Flash clock gating and firmware-controlled power gating allows Wake-Up to 96MHz Clock or 4MHz Clock the user to optimize power for the specific application. 600nA Low Power Mode (LP0) Current with RTC 2 Multiple SPI, UART, and I C serial interfaces are pro- Enabled vided, as well as a 1-Wire master and USB, allowing 2.56W Ultra-Low Power Data Retention Sleep for interconnection to a wide variety of external sensors. Mode (LP1) with Fast 5s Wake-Up on 96MHz A four-input, 10-bit delta-sigma ADC monitors analog Clock Source input from external sensors. 27A/MHz Low Power Mode (LP2) Current The MAX32625L is a lower-cost version of the MAX32625, Optimal Peripheral Mix Provides Platform Scalability providing 256kB of flash and 128kB of SRAM. SPI Execute in Place (SPIX) Engine for Memory Expansion with Minimal Footprint The MAX32626 is a secure version of the MAX32625. Three SPI Masters, One SPI Slave It incorporates a trust protection unit (TPU) with encryption Three UARTs and advanced security features. These features include 2 2 Up to Two I C Masters, One I C Slave a modular arithmetic accelerator (MAA) for ECDSA, a 1-Wire Master hardware PRNG entropy generator, and a secure boot Full-Speed USB 2.0 Device with Internal loader. Both the MAX32626 and the MAX32625 provide Transceiver a hardware AES engine. Sixteen Pulse Train (PWM) Engines Six 32-Bit Timers and 3 Watchdog Timers Applications Up to 40 General-Purpose I/O Pins Sports Watches 10-Bit Delta-Sigma ADC Operating at 7.8ksps Fitness Monitors AES -128, -192, -256 Wearable Medical Patches CMOS-Level 32kHz RTC Output Available in All Portable Medical Devices Power Modes Sensor Hubs Secure Valuable IP and Data with Robust Internal Hardware Security (MAX32626 Only) Ordering Information appears at end of data sheet. Trust Protection Unit (TPU) Provides ECDSA and ARM is a registered trademark and registered service mark and Modular Arithmetic Acceleration Support Cortex is a registered trademark of ARM Limited. PRNG Seed Generator 1-Wire is a registered trademark of Maxim Integrated Products, Inc. Secure Boot Loader 19-8596 Rev 0 8/16MAX32625/MAX32626 Ultra-Low Power, High-Performance ARM Cortex-M4F Microcontroller for Wearables TABLE OF CONTENTS General Description ............................................................................ 1 Applications .................................................................................. 1 Benefits and Features .......................................................................... 1 Simplified Block Diagram........................................................................ 4 Absolute Maximum Ratings ...................................................................... 5 Package Information ........................................................................... 5 63 WLP 5 68 TQFN . 5 Electrical Characteristics ........................................................................ 6 Electrical Characteristics - ADC ................................................................. 10 Electrical Characteristics - USB...................................................................11 Electrical Characteristics - SPI Master / SPIX Master................................................. 12 Electrical Characteristics - SPI Slave ............................................................. 13 2 Electrical Characteristics - I C Bus ............................................................... 13 Pin Configurations ............................................................................ 14 Pin Description ............................................................................... 16 Detailed Description........................................................................... 19 MAX32625/MAX32626 . 19 ARM Cortex-M4F Processor . 19 Power Operating Modes 19 Low Power Mode 0 (LP0) 19 Low Power Mode 1 (LP1) . 19 Low Power Mode 2 (LP2) 19 Low Power Mode 3 (LP3) 19 Analog-to-Digital Converter . 19 Pulse Train Engine 20 Clocking Scheme . 20 Interrupt Sources . 21 Real-Time Clock and Wake-Up Timer . 21 General-Purpose I/O and Special Function Pins 21 CRC Module . 21 Watchdog Timers . 21 Programmable Timers 22 Serial Peripherals . 22 USB . 22 2 I C Master and Slave 23 SPI (Master) . 23 Maxim Integrated 2 www.maximintegrated.com