EVALUATION KIT AVAILABLE
MAX32630–MAX32632
Ultra-Low-Power Arm Cortex-M4
with FPU-Based Microcontroller (MCU)
with 2MB Flash and 512KB SRAM
General Description
Benefits and Features
DARWIN is a new breed of low-power microcontrollers
built to thrive in the rapidly evolving Internet of Things (IoT).
They are smart, with the biggest memories in their class
and a massively scalable memory architecture. They run
forever, thanks to wearable-grade power technology. They
are also tough enough to withstand the most advanced
cyberattacks. DARWIN microcontrollers are designed
to run any application imaginable—in places where you
wouldn’t dream of sending other microcontrollers.
● High-Efficiency Microcontroller for Wearable Devices
• Internal Oscillator Operates Up to 96MHz
• Low Power 4MHz Oscillator System Clock Option
for Always-On Monitoring Applications
• 2MB Flash Memory
• 512KB SRAM
• 8KB Instruction Cache
• 1.2V CPU Core Supply Voltage
• 1.8V to 3.3V I/O
• Optional 3.3V ±5% USB Supply Voltage
Generation U microcontrollers are perfect for wearables
and IoT applications that cannot afford to compromise
power or performance. The MAX32630–MAX32632 fea-
ture an Arm® Cortex®-M4 with FPU CPU that delivers
ultra-low power, high-efficiency signal processing func-
tionality with significantly reduced power consumption
and ease of use.
● 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
• 3.5μW/MHz Ultra-Low Power Data Retention Sleep
Mode (LP1) with Fast 5μs Wakeup to 96MHz
Flexible power modes, an intelligent peripheral management
unit (PMU), dynamic clock gating and firmware-controlled
power gating optimizes power for the specific application.
● Optimal Peripheral Mix Provides Platform Scalability
• SPIX Execute in Place (XIP) Engine for Memory
Expansion with Minimal Footprint
2
Multiple SPI, UART, I C, 1-Wire® master, and USB inter-
faces are provided. The four-input, 10-bit ADC with select-
able references can monitor external sensors.
• Up to Three SPI Masters, One SPI Slave
• Four UARTs
The MAX32631/MAX32632 are secure versions of the
MAX32630. They provide a trust protection unit (TPU) with
encryption and advanced security features. These 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.
2
2
• Up to Three I C Masters, One I C 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 7.8ksps
• RTC Calibration Output
Applications
● Sports Watches
● 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
● Fitness Monitors
● Wearable Medical Patches
● Portable Medical Devices
● Sensor Hubs
• AES-128, -192, -256
• Secure Bootloader (MAX32632 Only)
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.
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
19-8478; Rev 5; 10/18