AMAPH1KK-KBR – Ambiq Micro Apollo2 MCU

AMAPH1KK-KBR is the BGA package version of Ambiq Micros Apollo2 MCU. It has 1MB Flash and 256KB RAM in a 64-pin BGA package.

Specifications and 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-M4F 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 2-way Associative Cache

Ultra-low power interface for off-chip sensors:

  • 14 bit, 15-channel, up to 1.2 MS/s ADC
  • Temperature sensor with +/-3ºC accuracy
  • Voltage Comparator

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 microphones

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

Compact package options:

  • 2.5 x 2.5 mm (0.35mm) 49-pin CSP with 34 GPIO
  • 4.5 x 4.5 mm (0.5mm) 64-pin BGA with 50 GPIO


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


Datasheet: Apollo2_MCU_Data_Sheet_rev0p92

Hardware Availability

The Apollo1 and Apollo2 MCUs and EVKs are available at the webshop of Fujitsu Electronics Europe GmbH (FEEU):


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