Features

Ultra-low supply current:

  • EEMBC ULPBench score of 377
  • 35 μA/MHz executing from flash at 3.3 V
  • 143 nA deep sleep mode at 3.3 V
  • 419 nA deep sleep mode with XTAL-assisted

RTC at 3.3 V

High-performance ARM Cortex-M4F Processor

  • Up to 24 MHz clock frequency
  • Floating point unit
  • Memory protection unit

Wake-up interrupt controller with 12 interrupts

Ultra-low power memory:

  • Up to 512 KB of flash memory for code/data
  • Up to 64 KB of low leakage RAM for code/data

Ultra-low power interface for off-chip sensors:

  • 10 bit, 13-channel, up to 800 kSps ADC
  • Temperature sensor with +/-4ºC accuracy

Flexible serial peripherals:

  • I2 C/SPI master for communication with sensors, radios, and other peripherals
  • I2 C/SPI slave for host communications
  • UART for communication with peripherals and legacy devices

Rich set of clock sources:

  • 32.768 kHz XTAL oscillator
  • Low frequency RC oscillator – 1.024 kHz
  • High frequency RC oscillator – 24 MHz
  • RTC based on Ambiq’s AM08X5/18X5 families
  • Wide operating range: 1.8-3.8 V, –40 to 85°C

Compact package options:

  • 2.49 x 2.90 mm 41-pin CSP with 27 GPIO
  • 4.5 x 4.5 mm 64-pin BGA with 50 GPIO

Applications

  • Wearable electronics
  • Wireless sensors
  • Activity and fitness monitors
  • Consumer electronics
  • Consumer medical devices
  • Smart watches

Software & Documentation

Evaluation Board

For more information about these innovative ultra low-power MCUs, please contact Ambiq Micro.

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