Apollo 01

The Apollo MCU is an ultra-low power, highly integrated microcontroller designed for battery-powered devices including wearable electronics, activity and fitness monitors, and wireless sensors. By combining ultra-low power sensor conversion electronics with the powerful Arm® Cortex®-M4F processor with the Floating Point Unit (FPU) options, the Apollo MCU enables complex sensor processing tasks to be completed with unprecedented battery life.

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Block Diagram for the Apollo Ultra-Low Power MCU

More Info
Weeks, months, and years of battery life are achievable while doing complex context detection, gesture recognition, and activity monitoring. The Apollo MCU takes full advantage of Ambiq’s patented Subthreshold Power Optimized Technology (SPOTTM) Platform, setting a new industry benchmark in low power design.
The Apollo MCU also integrates up to 512KB of flash memory and 64KB of RAM to accommodate radio and sensor overhead while still leaving plenty of space for application code. This microcontroller also includes a serial master and UART port for communicating with radios and sensors including accelerometers, gyroscopes, and magnetometers.

Features Highlights 02

Ideal Solution

An ideal solution for battery-powered applications requiring sensor measurement and data analysis.

ADC with Analog and Digital Outputs

Can measure analog sensor outputs using an integrated ultra-low power 10-bit ADC and digital sensor outputs using the integrated serial master ports.

Process Sensor Data

Capable of running complex data analysis and sensor fusion algorithms to process the sensor data.

Extended Battery Life

Enables months and years of battery life for products only achieving days or months of battery life today.

Greater Performance

Implementation of the Cortex-M4F core delivers both greater performance and much lower power than 8-bit, 16-bit, and other comparable 32-bit cores.

Uniquely Tuned ADC

ADC is uniquely tuned for minimum power with a configurable measurement mode that does not require MCU intervention.

Software Tool Suite

Supported by a complete suite of standard software development tools.


Specifications 03

Ultra-Low Supply Current

EEMBC ULP Bench 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-M4 Processor

Up to 24 MHz clock frequency

Floating Point Unit (FPU)

Memory Protection Unit (MPU)

Wake-up interrupt controller with 12 interrupts










Ultra-Low Power Memory

Up to 512KB of flash memory for code/data

Up to 64KB of low power RAM for code/data

Ultra-Low Power Interface for Off-Chip Sensors

10-bit, 13-channel up to 800 kSps ADC

Up to 800 kSps sampling rate

Temperature sensor with ±4°C accuracy

Ultra-Low Power Flexible Serial Peripherals

2x I2C/SPI masters for communication with sensors, radios, and other peripherals

1x I2C/SPI slave for host communications

1x UART for communication with peripherals and legacy devices

Rich Set of Clock Sources

32.768 kHz Crystal (XTAL) oscillators

Low Frequency RC (LFRC) oscillator (1.024 kHz)

High Frequency RC (HFRC) oscillator (24 MHz)

RTC based on Ambiq’s AM08X5/18X5 family

Wide Operating Range

1.8-3.8 V, -40°C to 85°C


Wearable electronics

Wireless sensors

Activity and fitness monitors

Consumer medical devices

Package Options

4.5 mm x 4.5 mm 64-pin BGA with 50 GPIO

2.49 mm x 2.90 mm 41-pin WLCSP with 27 GPIO

Ordering Information

APOLLO512-KBR (512KB Flash, 64KB RAM, 64-pin BGA)

APOLLO512-KCR (512KB Flash, 64KB RAM, 41-pin WLCSP)


Typical Sensor Application Circuit for the Apollo MCU
Typical Sensor Application Circuit for the Apollo MCU
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Documents 04

Where To Buy 05


Fujitsu Electronics Pacific Asia Limited Singapore Branch

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Southeast Asia


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Fujitsu Electronics Pacific Asia Limited Singapore Branch

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China and Hong Kong

Direct Sales

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Fujitsu Electronics Inc (FEI)

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Direct Sales

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TOP-electronics USA

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Direct Sales

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Direct Sales

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Sechang Semicon Co., Ltd. – Sales Representative

[email protected]