Apollo3 Blue Plus 01

The Apollo MCU Family is an ultra-low power, highly integrated microcontroller platform based on Ambiq's patented Subthreshold Power Optimized Technology (SPOTTM) and designed for battery-powered and portable, mobile devices.

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Block Diagram for the Ultra-Low Power Apollo3 Blue Plus MCU

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The Apollo3 Blue Plus MCU sets a new standard in energy efficiency for battery-powered devices with an integrated Arm® Cortex®-M4 processor with Floating Point Unit and TurboSPOTTM 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 Plus brings several new features to Ambiq’s SPOT based Apollo MCU Family including an integrated DMA engine, QSPI interface and advanced stepper motor control for ultra-low power analog watch hand management.
The Apollo3 Blue Plus also forms the core of Ambiq’s Voice-on-SPOTTM reference platform making it the perfect device for always-on voice assistant integration and command recognition to battery-powered devices. The Apollo3 Blue Plus provides a dedicated second core for the ultra-low power BLE5 connectivity platform providing superior RF throughput and leaving plenty of resources available for user applications. The Apollo3 Blue Plus adds two additional MSPI modules (3 total), and increases the external memory execute-in-place (XiP) aperture from 64MB to 96MB (32MB/MSPI instance). Additionally, internal flash increases from 1MB to 2MB, SRAM from 384KB to 768KB (TCM size remains at 64KB) and the GPIO count increases from 50 to 74.

Features Highlights 02

Ideal Solution

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

Integrated BLE5 Radio

Serves as an applications processor for one or more sensors and has a fully integrated BLE5 radio.

Multiple Serial Protocol Support

A host processor can communicate with the Apollo3 Blue Plus MCU 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.

Scalable SAR ADC

A scalable SAR ADC monitors the temperature sensor, several internal voltages, and up to 8 external sensor signals.

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 to shorten development times.

Specifications 03

Ultra-Low Supply Current

6 μA/MHz executing from flash or RAM at 3.3 V

1 μA deep sleep mode (BLE Off) with RTC at 3.3 V (BLE 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 (WIC) with 32 interrupts

AMA3B2KK-KBR BGA
AMA3B2KK-KBR BGA

Integrated Bluetooth® Low-Energy Module

RF sensitivity: -93 dBm (typical)

Tx: 3 mA @ 0 dBm, Rx: 3 mA

Tx peak output power: 4.0 dBm (max)

Ultra-Low Power Memory

Up to 2MB of flash memory for code/data

Up to 768KB 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, 14 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 and 2x 2/4-bit SPI master interface (MSPIs)

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 (48/96 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

Package Option

5.3 mm x 4.3 mm x 0.8 mm, 108-pin BGA with 74 GPIO

Ordering Information

AMA3B2KK-KBR (768KB RAM, 108-pin BGA)

AMA3B2EVB (EVB)

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Documents 04

Download resources including Product Briefs, Selector Guides, Whitepaper, Case Studies, Analyst Reports, and more

Where To Buy 05

India

Fujitsu Electronics Pacific Asia Limited Singapore Branch

desmond.tan@sg.fujitsu.com

Southeast Asia

IID A ELECTRONICS(TSUSHO) Co., Ltd

inoue@iida.com.sg

Fujitsu Electronics Pacific Asia Limited Singapore Branch

desmond.tan@sg.fujitsu.com

China and Hong Kong
Japan

Fujitsu Electronics Inc (FEI)

fei-ambiq-support@dl.jp.fujitsu.com

IID A ELECTRONICS(TSUSHO) Co., Ltd

N-ogawa@iida-device.com

USA

TOP-electronics USA

info@TOP-electronicsUSA.com

Taiwan
Korea

Direct Sales

sales@ambiqmicro.com

Sechang Semicon Co., Ltd. – Sales Representative

sales@sechangsemicon.com