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Apollo3 01

Apollo3 Blue EVB

The Apollo3 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.

Apollo3 Blue MCU EVB Drawing
Apollo3 Blue EVB

Block Diagram for the Ultra-Low Power Apollo3 SoC

More Information

The Apollo3 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 SoC is the 3rd generation controller building upon Ambiq’s Apollo SoC product line. The Apollo3 SoC integrates up to 1MB of flash memory and 384KB of RAM to accommodate radio and sensor overhead while still leaving plenty of space for application code and algorithms. In addition to flexible serial channels for radio and sensor communication, this system on a chip also includes dual Pulse-Density Modulation (PDM) inputs for applications that require digital microphones for near and mid-field always-on keyword detection, voice assistant integration, and voice control.
Specifications

Ultra-Low Power Supply

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

1 μA deep sleep mode with RTC at 3.3 V

High-Performance Arm Cortex-M4 Processor

Up to 48 MHz nominal clock frequency with 96 MHz performance

Floating Point Unit (FPU)

Memory Protection Unit (MPU)

Wake-up interrupt controller with 32 interrupts

Apollo3 WLCSP<br>AMAP31KK-KCR

Apollo3 WLCSP
AMAP31KK-KCR

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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

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

Headsets, Earphones, Wireless Earbuds

Mobile Accessories

Hearing Aids

Always-Listening, Voice-Activated Appliances

Portable Voice Assistants

Remote Controls

Smart Cards

Fingerprint Readers

Wearable electronics including smart watches

Smart meters

Wireless sensors

Activity and fitness monitors

Consumer electronics

Package Options

5 mm x 5 mm, 81-pin BGA with 50 GPIO

3.25 mm x 3.37 mm, 66-pin WLCSP with 37 GPIO

Ordering Information

AMAP31KK-KBR (BGA)

AMAP31KK-KCR (WLCSP)

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Documents 04

Where To Buy 05

Global Distributor
Latin America

Direct Sales

sales@ambiq.com

TOP-electronics USA

info@top-electronicsUSA.com

Japan

IIDA ELECTRONICS (TSUSHO) Co., Ltd

m-kokura@iida-tusho.co.jp

Southeast Asia

IID A ELECTRONICS(TSUSHO) Co., Ltd

inoue@iida.com.sg

KAGA FEI ELECTRONICS PACIFIC ASIA LIMITED Singapore Branch

desmond.tan@ap.kagafei.com

India

KAGA FEI ELECTRONICS PACIFIC ASIA LIMITED

desmond.tan@ap.kagafei.com

Korea

Direct Sales

sales@ambiq.com

Sechang Semicon Co., Ltd.

sales@sechangsemicon.com

USA

Direct Sales

sales@ambiq.com

TOP-electronics USA

info@TOP-electronicsUSA.com

China and Hong Kong

Direct Sales

sales_china@ambiq.com

Taiwan

Direct Sales

sales_taiwan@ambiq.com

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