The APOLLO512-KCR is a 32-bit ARM Cortex-M4F microcontroller from Ambiq Micro, designed with ultra-low power consumption as its core focus. Built on Ambiq’s proprietary Subthreshold Power Optimized Technology (SPOT®) platform, this MCU delivers exceptional performance-per-watt, making it an ideal solution for wearables, fitness trackers, smart sensors, and portable IoT devices.
The Apollo512 MCU family stands out for its ability to deliver extended battery life in space- and power-constrained environments without sacrificing performance.
Technical Specifications
- Core: ARM® Cortex®-M4F with Floating Point Unit (FPU)
- Operating Frequency: Up to 48 MHz
- Flash Memory: 512 KB
- SRAM: 64 KB
- Operating Voltage: 1.8V
- Active Power Consumption: ~34 µA/MHz
- Sleep Mode: As low as 150 nA with RTC running
- Timers: 32-bit real-time clock, watchdog, general-purpose timers
- Interfaces:
- 6x UART
- 6x I²C
- 6x SPI
- 1x I²S (for audio)
- Analog:
- 14-bit ADC with up to 13 input channels
- Temperature sensor
- Security Features:
- Secure boot
- Hardware AES-128/256 encryption
- Package: QFN or BGA, depending on variant
- Operating Temperature: -40°C to +85°C (industrial grade)
Find the full datasheet and product specifications on the Ambiq Micro APOLLO512 product page.
Key Features
- Ultra-low energy consumption for extended battery life
- Integrated FPU for efficient signal processing
- Rich peripheral set ideal for sensor hubs and wearable control
- Small form factor packages suitable for compact designs
- On-chip temperature and voltage monitoring for robust system health tracking
- Software development support through Arm Mbed, CMSIS, and Ambiq SDK
Applications of APOLLO512-KCR
- Wearables and Fitness Trackers
The APOLLO512-KCR powers devices like smartwatches, health monitors, and activity bands, where small size and long battery life are critical. It processes sensor data in real time and supports Bluetooth communication through external transceivers.
- IoT Edge Devices and Sensors
This MCU is perfect for IoT edge nodes, including environmental monitors, motion detectors, and smart agriculture sensors, where ultra-low power sleep and real-time event response are essential.
- Smart Home Devices
In home automation products like security sensors, keypads, and remote controls, this MCU provides responsive control and reliable wireless connectivity support while consuming minimal energy.
- Health and Medical Devices
In portable ECG monitors, pulse oximeters, and drug delivery systems, the APOLLO512-KCR supports real-time data processing and accurate analog readings while preserving battery life over extended usage cycles.
- Industrial and Asset Tracking
The MCU is used in asset tags, smart meters, and industrial monitoring devices, where energy harvesting and extended deployment time are important for reducing maintenance.
Why Choose DRex Electronics for APOLLO512-KCR?
At DRex Electronics, we specialize in supplying advanced microcontrollers like the APOLLO512-KCR to OEMs and design engineers across IoT, wearables, and embedded device sectors.
Benefits of Sourcing from DRex:
- Access to a broad range of ultra-low-power MCUs
- ISO 9001-certified sourcing and fulfillment
- Support for both prototype and mass production volumes
- Fast international delivery and supply chain traceability
- Dedicated technical support for component selection




