Features

Ultra-low supply current

  • <10 μA/MHz executing from flash at 3.3 V
  • <10 μA/MHz executing from RAM at 3.3 V

High-performance ARM Cortex-M4 Processor

  • Up to 48 MHz clock frequency
  • Floating point unit
  • Memory protection unit
  • Wake-up interrupt controller with 32 interrupts

Ultra-low power memory:

  • Up to 1 MB of flash memory for code/data
  • Up to 256 KB of low leakage RAM for code/data
  • 16kB 1 or 2-way Associative Cache

Ultra-low power interface for off-chip sensors:

  • 14 bit, 15-channel, up to 1.2 MS/s ADC
  • Voltage Comparator
  • Temperature sensor with +/-2ºC accuracy

Flexible serial peripherals:

  • 6x I2C/SPI master for communication with sensors, radios, and other peripherals
  • 1x I2C/SPI slave for host communications
  • 2x UART for communication with peripherals and legacy devices
  • PDM for mono and stereo audio microphone

Rich set of clock sources:

  • 32.768 kHz XTAL oscillator
  • Low frequency RC oscillator – 1.024 kHz
  • High frequency RC oscillator – 48 MHz
  • RTC based on Ambiq’s AM08X5/18X5 families

Wide operating range: 1.8-3.6 V, –40 to 85°C

Compact package options:

  • 2.5 x 2.5 mm 49-pin CSP with 34 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
  • Smart Home/IoT devices

Documentation & Dev Kit

Please contact Ambiq sales for info.

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