Innovation at Your Fingertips

Apollo3 opens up new possibilities for next-generation devices with a flexible, ultra-low power platform for IoT endpoint devices.

Experience the Future of Ultra-Low Power


Intelligence Focused

Architected with the feature requirements of future endpoint AI devices in mind.


Versatility Reimagined

Full-featured hardware and software platform that has excelled as both an application processor and sensor hub for a wide variety of markets and use cases.


Efficiency Redefined

Industry-leading ultra-low power with less than 6µA/MHz of active power consumption and 1 μA in deep sleep.


Security Centered

Ambiq’s secureSPOT® platform with secure OTA and wired updates, Flash protection, recovery, hardware entropy, and more for secure applications.

Apollo3 Block Diagram


Ultra-Low Power Supply

  • 6 μA/MHz executing from flash or RAM at 3.3 V
  • 1 μA deep sleep mode with RTC at 3.3 V

High-Performance Arm Cortex-M4 Processor

  • Up to 48 MHz nominal clock frequency with 96 MHz performance
  • Floating Point Unit (FPU)
  • Memory Protection Unit (MPU)
  • Wake-up interrupt controller with 32 interrupts

Ultra-Low Power Memory

  • Up to 1MB of flash memory for code/data
  • Up to 384KB of low power RAM for code/data
  • 16KB 2-way Associative/Direct-Mapped Cache

Ultra-Low Power Interface for On- and Off-Chip Sensors

  • 14-bit ADC, 15 selectable input channels available
  • Up to 2.67 MS/s sampling rate
  • Voltage Comparator (VCOMP)
  • Temperature sensor with ±3°C accuracy after calibration

Ultra-Low Power Flexible Serial Peripherals

  • 1x 2/4/8-bit SPI master interface (MSPI)
  • 6x I2C/SPI masters for peripheral communication
  • 1x I2C/SPI slave for host communications
  • 2x UART modules with 32-location Tx and Rx FIFOs
  • PDM for mono and stereo audio microphones
  • 1x 12S slave for PDM audio pass-through

Rich Set of Clock Sources

  • 32.768 kHz Crystal (XTAL) oscillator
  • Low Frequency RC (LFRC) oscillator (1.024 kHz)
  • High Frequency RC (HFRC) oscillator (48 MHz)
  • RTC based on Ambiq’s AM08X5/18X5 family

Wide Operating Range

  • 1.755-3.63 V, -40°C to 85°C


  • Headsets, Earphones, Wireless Earbuds
  • Mobile Accessories
  • Hearing Aids
  • Always-Listening, Voice-Activated Appliances
  • Portable Voice Assistants
  • Remote Controls
  • Smart Cards
  • Fingerprint Readers
  • Wearable electronics including smart watches
  • Smart meters
  • Wireless sensors
  • Activity and fitness monitors
  • Consumer electronics

Package Options

  • 5 mm x 5 mm, 81-pin BGA with 50 GPIO
  • 3.25 mm x 3.37 mm, 66-pin WLCSP with 37 GPIO

Ordering Information


Design Resources

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