Maxim Integrated — Ultra-Low-Power Arm Cortex-M4 with FPU-Based Microcontroller for Wearable and IoT Sensors

DARWIN Generation U MCUs Are Perfect for Engineers Who Are Serious About Power and Performance
 

Key Features

• High-efficiency microcontroller for wearable devices
  • Internal oscillator operates up to 96MHz
  • 256KB Flash memory
  • 96KB SRAM, optionally preserved in lowest power backup mode
  • 16KB Instruction cache
  • Memory protection unit (MPU)
  • Low 1.1V VCORE supply voltage
  • 3.6V GPIO operating range
  • Internal LDO provides operation from single supply
  • Wide operating temperature: -40°C to +105°C
• Power management maximizes uptime for battery applications
  • 85µA/MHz active executing from flash
  • 2µA Full memory retention power in backup mode at V_DD = 1.8V
  • 570nA Ultra-low power RTC at V_DD=1.8V
  • Internal 8kHz ring oscillator
• Optimal peripheral mix provides platform scalability
  • Up to 14 general-purpose I/O pins
  • Up to two SPI master/slave
  • I²S master/slave
  • Up to two UARTs
  • Up to two I²C master/slave, 3.4Mbps high speed
  • Four-channel standard DMA controller
  • Three 32-bit timers
  • Watchdog timer
  • CMOS-Level 32.768kHz RTC Output

Applications/Uses

• Fitness monitors
• Industrial sensors
• IoT
• Optical modules: QSFP-DD, QSFP, 400G
• Portable medical devices
• Sports watches
• Wearable medical patches