Intro 01 Features 02 Specifications 03 Documents 04 Buy 04

Apollo3 Blue 01

The Apollo3 Blue SoC is an ultra-low power, highly integrated microcontroller platform based on the Ambiq^® patented Subthreshold Power Optimized Technology (SPOT^®) and designed for battery-powered and portable, mobile devices.

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Block Diagram for the Ultra-Low Power Apollo3 Blue SoC

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More Information

The Apollo3 Blue SoC sets a new standard in energy efficiency for battery powered devices with an integrated Arm^® Cortex^®-M4 processor with Floating Point Unit and turboSPOT^® increasing the computational capabilities of the Arm Cortex-M4F core to 96 MHz while lowering the active power consumption to < 6 μA/ MHz. This combination dramatically reduces energy consumption while still enabling abundant application processing power to add greater capability and extended life to battery operated devices.

The Apollo3 Blue brings several new features to Ambiq’s SPOT-based Apollo SoC Family including an integrated DMA engine, QSPI interface, and advanced stepper motor control for ultra-low power analog watch hand management.

With unprecedented energy efficiency and PDM microphone inputs, the Apollo3 Blue also forms the core of Ambiq’s Voice-on-SPOT^® reference platform making it the perfect device for customers who want to add always-on voice assistant integration and command recognition to battery-powered devices. To increase design flexibility and enable connections to the phone and cloud, the Apollo3 Blue provides a dedicated second core for the ultra-low power Bluetooth Low Energy 5 connectivity platform providing superior RF throughput and leaving plenty of resources available for user applications.

Feature Highlights 02

Ideal Solution

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

Integrated Bluetooth Low Energy 5 Radio

Serves as an applications processor for one or more sensors and has a fully integrated Bluetooth Low Energy 5 radio.

Multiple Serial Protocol Support

A host processor can communicate with the Apollo3 Blue SoC over its serial slave port using the I²C, SPI or I²S protocol.

High Energy Efficiency

turboSPOT^® technology allows applications to meet critical timing as/when needed while still providing extremely high energy efficiency operation.

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.

Optimized PWM

Supports highly optimized PWM pattern generation for complex, efficient stepper motor control operation.

Software Tool Suite

Supported by a complete suite of standard software development tools.

Specifications

Specifications 03

Ultra-Low Supply Current
6 μA/MHz executing from flash or RAM at 3.3 V
1 μA deep sleep mode (Bluetooth Low Energy Off) with RTC at 3.3 V (Bluetooth Low Energy in SD)

High-Performance Arm Cortex-M4 Processor
Up to 48 MHz nominal clock frequency with 96 MHz performance TurboSPOT Mode
Floating Point Unit (FPU)
Memory Protection Unit (MPU)
Wake-up interrupt controller with 32 interrupts

Apollo3 Blue BGA
AMA3B1KK-KBR-B0

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Apollo3 Blue WLCSP
AMA3B1KK-KCR-B0

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Apollo3 Blue<br>Evaluation Board<br>AMA3BEVB

Apollo3 Blue
Evaluation Board
AMA3BEVB

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Apollo3 Blue BGA
AMA3B1KK-KBR-B0

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Apollo3 Blue WLCSP
AMA3B1KK-KCR-B0

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Apollo3 Blue
Evaluation Board
AMA3BEVB

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Integrated Bluetooth Low Energy Module
RF sensitivity: -93 dBm (typical)

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
ISO7816 Secure interface
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

Applications
Voice-on-SPOT compatible for always-listening keyword detect, audio command recognition and voice assistant integration in battery-powered devices including: - Bluetooth^® headsets, earbuds, and truly wireless earbuds - Remote and Gaming Controls - Smart home
Wearables including smart watches and fitness/activity trackers
Hearing aids, Digital Health Monitoring and Sensing Devices
Smart Home Automation, Security and Lighting control applications