Intro 01 Features 02 Specifications 03 Documents 04 Buy 04

Block Diagram for the Ultra-Low Apollo2 Blue MCU

More Info

This combination dramatically reduces energy consumption while still enabling abundant application processing power to add greater capability and extended life to battery-operated devices. With unprecedented levels of energy efficiency, the Apollo2 can deliver always-on keyword detection and voice assistant integration, local voice control, complex sensor processing, gesture recognition and activity monitoring applications within the smallest power budget.

By combining ultra-low power sensor conversion electronics with the powerful Arm Cortex-M4 processor with Floating Point Unit, the Apollo2 Blue MCU enables complex sensor processing tasks to be completed with unprecedented battery life. Weeks, months, and years of battery life are achievable while doing complex context detection, gesture recognition, and activity monitoring.

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 BLE 5 radio.

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.

Multiple Serial Protocol Support

A host processor can communicate with the Apollo2 MCU over its serial slave port using the I²C, SPI or I²S protocol.

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
< 10 μA/MHz executing from flash at 3.3 V
< 10 μA/MHz executing from RAM at 3.3 V
< 3 μA deep sleep mode with RTC at 3.3 V (Bluetooth in shutdown)

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

Apollo2 Blue AMA2B1KK-KLR

Integrated Bluetooth^® Wireless Technology BLE5-Compliant Low-Energy Sub-System
RF sensitivity: -95 dBm
Tx: 5 mA @ 0 dBm, Rx: 3.5 mA
Tx output power: -40 dBm to +5 dBm
AES 128-bit encryption
Over-The-Air updates (OTA)
Coexistence with other 2.4 GHz wireless
Bluetooth SIG profiles support
Enhanced data rate up to 2 Mbps feature capable

Built-in 32 kHz RCOU Ultra-low Power Memory
Up to 1MB of flash memory for code/data
Up to 256KB of low power RAM for code/data
16KB 2-way Associative Cache

Ultra-Low Power Interface for On- and Off-Chip Sensors
14-bit ADC, 11 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
4x I²C/SPI masters with 128-byte bidirectional FIFO for communication with sensors, radios, and other peripherals
1x I²C/SPI slave for host communications with 256-bytes LRAM area for FIFO/host support
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
Wearable electronics including smart watches
Activity and fitness monitors
Wireless sensors
Consumer electronics
Beacons
Light control applications
Remote sensing
Wireless mice and keyboards
Motion and tracking devices
Alarms and security system
Home automation
Toys

Package Option
4 mm x 4 mm x 0.9 mm 64-pin LGA with up to 31 GPIO

Ordering Information
AMA2B1KK-KLR (256KB RAM, 64-pin LGA)
AMA2BEVB (EVB)

Documents 04

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

Find document

Apollo2 Blue MCU Product Brief v1.3 Apollo2 Blue MCU Datasheet v1.0 Apollo2 Blue MCU Silicon Errata v5.0 Apollo2 Blue EVB Quick Start Guide v1.0 Apollo2 Blue EVB Schematics v1.0.1 Apollo2 Blue EVB BOM Apollo2 Blue MCU Design Guidelines v1.1 Apollo2 Blue FCC, DTM and Sensitivity Test Report Apollo2 Blue Qualification Test Report for LGA v1.0 Apollo2 Design Files SMT Assembly Considerations for LGA Package Apollo MCU and SoC Selector Guide Apollo MCU and SoC Family Brochure Getting Started with AmbiqSuite SDK v1.0 AmbiqSuite SDK Release Notes v2.5.1 AmbiqSuite SDK v2.5.1 AmbiqSuite SDK v2.4.2 See AmbiqSuite SDK Knowledge Base Articles Conflict Minerals Policy Statement Certificate of Halogen-Free Compliance Certificate of REACH Compliance Certificate of RoHS Compliance

Where To Buy 05

Europe

Apollo2 Blue 01