Introduction

At the heart of the Apollo MCUs family is Ambiq Micro’s patented Subthreshold Power Optimized Technology (SPOT™). Utilizing SPOT™ the Apollo MCUs deliver the required reduction in energy microcontrollers offer an ARM Cortex-M4F core at power levels that are even lower than competing ARM Cortex- M0+ solutions. Unrivaled power savings combined with a high-performance processing engine make the Apollo MCUs an ideal solution for battery-powered devices. With an extensive set of features to run enhanced application at an ultra-low power budget.

MCUs Selection Guide:

MCU Guide

AmbiqMicro_Overview_Flyer_MCU.pdf

Whitepaper-A-Revolutionary-Approach-to-Eliminating-Power.pdf

Apollo1

  • MCUs
  • EVB

Apollo1 MCUs

Apollo1 MCUWith the release of the Apollo1 MCUs Ambiq Micro proved what ultra-low power design can accomplish. Since then the growing Apollo microcontroller family provides the lowest active and sleep mode power on the market. With Apollo MCUs, designers of next generation wearables and IoT devices can take their innovative products to the next level by increasing battery life, adding more intelligent sensor processing, and fitting into smaller form factors.

 

 

Available Devices:

Part Number Flash RAM Package Size
APOLLO512-KCR 512KB 64KB 41-pin WLCSP 2.49 x 2.90 mm
APOLLO512-KBR 512KB 64KB 64-pin BGA 4.50 x 4.50 mm
APOLLO256-KCR 256KB 32KB 41-pin WLCSP 2.49 x 2.90 mm
APOLLO256-KBR 256KB 32KB 64-pin BGA 4.50 x 4.50 mm

 

 

 

 

Features

Ultra-low active mode power consumption: 34µA/MHz (executing from Flash)

Ultra-low sleep mode power consumption: 143nA (with RTC on)

High-performance, 32-bit ARM Cortex-M4F processor

  • Up to 24MHz clock frequency
  • Floating point unit
  • Wake-up interrupt controller with 12 interrupts

Ultra-low power memory

  • Up to 512kB Flash
  • Up to 64kB low-leakage RAM

Ultra-low power interface for off-chip sensors

  • 10-bit, 13-channel, up to 800kSps ADC
  • Temperature sensor with ±4°C accuracy

Rich set of timing peripherals

Flexible serial peripherals

  • I2C/SPI master for communication with external peripherals
  • I2C/SPI slave for optional host communications
  • UART for communication with peripherals and legacy devices

Wide operating range: 2.2 to 3.8V

Compact package options

  • 64-pin BGA with 50 GPIO
  • 41-pin CSP with 27 GPIO

Apollo1 Evaluation Board (EVB)

Apollo1 EVB The Ambiq Micro Apollo1 Evaluation Kit, or EVK, is the best place to start when designing with the Apollo 1 MCU. The EVK system contains already an on-board Segger JLINK Debugger and routes all available GPIOs to Arduino compatible headers; all designed to work together and provide you a low power, connected sensing platform.

 

 

Features:

  • USB connector / powering
  • Segger J-link support
  • Adruino shield ready
  • 3 push buttons
  • 4 LEDs

Documents:

Apollo2

  • MCUs
  • EVB

Apollo2 MCUs

Apollo2 MCUApollo2 is the second generation into the ultra-low power Apollo microcontroller family. This highly integrated MCU reduces power consumption by more than 50% compared to the first generation Apollo MCUs, therefore empowering users with more processing capability with an even lower power budget. Apollo2 opens door for enhanced applications performing complex context detection, gesture recognition, and activity monitoring with longer battery life in wearable electronics, activity & fitness monitors, IoT devices, and wireless sensors. All Apollo series MCUs take full advantage of Ambiq Micro’s patented Subthreshold Power Optimized Technology (SPOT) Platform, setting a new industry benchmark in low power design.

 

Apollo2 Overview

 

Available devices

Part Number Flash RAM Package Size
AMAPH1KK-KCR 1MB 256KB 49-pin CSP 2.5 x 2.5 mm
AMAPH1KK-KBR 1MB 256KB 64-pin BGA 4.50 x 4.50 mm

 

Specifications and Features

Ultra-low supply current:

  • <10 μA/MHz executing from flash at 3.3 V
  • <10 μA/MHz executing from RAM at 3.3 V

High-performance ARM Cortex-M4F Processor:

  • Up to 48 MHz clock frequency
  • Floating point unit
  • Memory protection unit
  • Wake-up interrupt controller with 32 interrupts

Ultra-low power memory:

  • Up to 1 MB of flash memory for code/data
  • Up to 256 KB of low leakage RAM for code/data
  • 16kB 2-way Associative Cache

Ultra-low power interface for off-chip sensors:

  • 14 bit, 15-channel, up to 1.2 MS/s ADC
  • Temperature sensor with +/-3ºC accuracy
  • Voltage Comparator

Flexible serial peripherals:

  • 6x I2C/SPI master for communication with sensors, radios, and other peripherals
  • 1x I2C/SPI slave for host communications
  • 2x UART for communication with peripherals and legacy devices
  • PDM for mono and stereo audio microphones

Rich set of clock sources:

  • 768 kHz XTAL oscillator
  • Low frequency RC oscillator – 1.024 kHz
  • High frequency RC oscillator – 48 MHz
  • RTC based on Ambiq’s AM08X5/18X5 families

Compact package options:

  • 5 x 2.5 mm (0.35mm) 49-pin CSP with 34 GPIO
  • 5 x 4.5 mm (0.5mm) 64-pin BGA with 50 GPIO

Apollo2 Evaluation Board (EVB)

Apollo2 EVBThe Ambiq Micro Apollo2 Evaluation Kit, or EVK, is the best place to start when designing with the Apollo 2 MCU. The EVK system contains already an on-board Segger JLINK Debugger and routes all available GPIOs to Arduino compatible headers; all designed to work together and provide you a low power, connected sensing platform.

 

 

Features:

  • USB connector / powering
  • Segger J-link support
  • Adruino shield ready
  • 3 push buttons
  • 4 LEDs

Documents:

Apollo2 Blue

  • MCUs
  • EVB

Apollo2 Blue MCUs

Apollo2 Blue MCUThe device offers Bluetooth™ Low Energy (BLE 5) ready radio and integrates 1 MB of flash memory and 256 KB of RAM to accommodate radio and sensor overhead while leaving space for application code. This microcontroller also includes several masters and one slave SPI and I2C ports and two UART ports for communicating with sensors including accelerometers, gyroscopes, and magnetometers. Apollo2 Blue adds top rated BLE radio capability to an already existing array of relevant functionality built around the Cortex-M4 processor expressly designed for use in IoT and wearables applications.

 

Apollo2 Blue overview

 

Apollo2 Blue (with BLE) device

Part Number Flash RAM Package Size
AMA2B1KK-KLR 1MB 256KB 64-pad LGA 4 x 4 x 0.9 mm

 

Features

Bluetooth® low energy 5:

  • RF sensitivity: -95 dBm
  • TX: 5mA @0 dBm
  • RX: 3.5mA
  • 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
  • Built in 32 KHz RCO

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
  • Memory protection unit
  • Wake-up interrupt controller with 32 interrupts
  • Up to 31 GPIOs

Ultra-low power memory:

  • Up to 1 MB of flash memory for code/data
  • Up to 256 KB of low leakage RAM for code/data
  • 16kB 2-way Associative Cache

Ultra-low power interface for off-chip sensors:

  • Highly configurable 14-bit ADC at 1.2 MS/s, 15 channels (7 simultaneous inputs) available
  • Selectable 8/10/12/14 bit precision to save energy
  • Voltage Comparator
  • Temperature sensor with +/-2ºC accuracy

Flexible serial peripherals:

  • 4x I2C/SPI master with 128-byte bidirectional FIFO for communication with sensors, radios, and other peripheralsI
  • 1x I2C/SPI slave for host communications with 256-byte LRAM area for FIFO/host support
  • 2x UART modules with 32-location transmit and receive FIFOs for communication with peripherals and legacy devices
  • PDM audio interface support with 256-word FIFO for single or dual microphone input

Highly configuarable timing peripherals:

  • RTC with both 32.768 kHz XTAL and 1.024 kHz RC sources
  • 8x 16-bit timers with flexible functionality for timing and PWM generation
  • 32-bit system timer with 8 compare registers for interrupt generation and 4 capture registers

Rich set of clock sources:

  • 768 kHz XTAL oscillator
  • Low frequency RC oscillator – 1.024 kHz
  • High frequency RC oscillator – 48 MHz
  • RTC based on Ambiq’s AM08X5/18X5 families

Wide operating range: 1.755 – 3.60 V, –40 to 85°C

Compact package: 4 x 4 x 0.9 mm 64-pin LGA 

Software Support:

  • Embedded OS – FreeRTOS 9.0
  • ARM Cordio BLE Stack (Wicentric)
  • Proprietary OTA (Over the air firmware update)
  • Fitness Profile
  • Watch Profile
  • Standard Bluetooth SIG LE profiles
  • Data Exchange service
  • Various services supported : ANS, BAS, DIS, HRS, RSCS, TSS, PXS
  • Tx Power control
  • Concurrent Master and Slave modes
  • HCI over SPI 32.768 kHz XTAL oscillator
  • Tool Chain: IAR, Keil, GCC, Segger

Apollo2 Blue Evaluation Board

Apollo2 Blue EVBThe Ambiq Micro Apollo2 Blue Evaluation Kit, or EVK, is the best place to start when designing with the Apollo2 Blue MCU. The EVK system contains already an on-board Segger JLINK Debugger and routes all available GPIOs to Arduino compatible headers; all designed to work together and provide you a low power, connected sensing platform.

 

 

 

 

Features:

  • USB connector / powering
  • Segger J-link support
  • Adruino shield ready
  • 3 push buttons
  • 4 LEDs

Documents

Apollo3 Blue

  • MCUs

Apollo3 Blue MCUs

Apollo3 Blue MCUApollo3 Blue is the upcoming new MCUs expanding the ultra-low power Apollo microcontroller family. It manages a further reduction in power consumption compared to the so far unprecedented values of the former Apollo generations. At the heart of the Apollo3 Blue MCU is Ambiq Micro’s patented Subthreshold Power Optimized Technology (SPOT™) and a powerful ARM Cortex-M4 processor with Floating Point Unit. With its extended set of features and incorporated BLE 5, the Apollo3 Blue enables users to run sophisticated processes in hearables, wearables, IoT edge devices and voice controlled applications within an ultra-competitive power budget.

Currently available in beta stage for selected customers, the Apollo3 Blue is ready for mass production in Q1/19. First evaluation samples of the 81-pin BGA package and Evaluation-Kits are available upon request.

 

Apollo§ Blue overview

 

Specifications and Features

Ultra-low supply current:

  • 6 μA/MHz executing from flash at 3.3 V
  • 6 μA/MHz executing from RAM at 3.3 V
  • 1 μA deep sleep mode (BLE Off) with RTC at 3.3 V

High-performance ARM Cortex-M4Processor

  • 48 MHz nominal clock frequency, with 96 MHz high performance

Burst Mode

  • Floating point unit
  • Memory protection unit
  • Wake-up interrupt controller with 32 interrupts

Integrated Bluetooth 5 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 1 MB of flash memory for code/data
  • Up to 384 KB of low leakage RAM for code/data
  • 16 kB 2-way Associative/Direct-Mapped Cache

Ultra-low power interface for off-chip sensors:

  • 14 bit ADC at up to 1.2 MS/s, 15 selectable input channels available
  • Voltage Comparator
  • Temperature sensor with ±3°C accuracy

ISO7816 Secure interface

Flexible serial peripherals:

  • 1x 2/4/8-bit SPI master interface
  • 6x I2C/SPI masters for peripheral communication
  • I2C/SPI slave for host communications
  • 2x UART modules with 32-location Tx and Rx FIFOs
  • PDM for mono and stereo audio microphone
  • 1x I2S slave for PDM audio pass-through

Rich set of clock sources:

  • 768 kHz XTAL oscillator
  • Low frequency RC oscillator – 1.024 kHz
  • High frequency RC oscillator – 48/96 MHz
  • RTC based on Ambiq’s AM08X5/18X5 families

Wide operating range: 1.755-3.63 V, –40 to 85°C

Compact package option:

  • 37 x 3.25 mm(<0.35mm thk pkg) 66-pin CSP with 37 GPIO
  • 5 x 5 mm (<0.5mm thk pkg) 81-pin BGA with 50 GPIO

Technology

SPOT™ Platform

Ambiq Micro is redefining “ultra-low power” with its unique and proprietary Subthreshold Power Optimized Technology (SPOT™) platform. The patented SPOT™ architecture uses transistors biased in the subthreshold region of operation (aka very low voltages) to achieve unmatched energy efficiency.

Breakthrough subthreshold design

Rather than using transistors that are turned all the way “on”, subthreshold circuits use the leakage of “off” transistors to compute in both the digital and analog domains. With most computations handled by using only leakage current, total system power consumption on the order of nanoamps is easily achieved. For example, when compared to a typical circuit operating at 1.8V, a “near-threshold” circuit operating at 0.5V can achieve up to a 13X improvement in dynamic power.

Operation at such low voltages is problematic due to susceptibility to noise, high sensitivity to temperature, and variability due to process drift. In developing the SPOT™ platform, Ambiq Micro has addressed all of these challenges by redesigning every analog and digital circuit in the chip to adapt for the temperature, voltage, and manufacturing variations that are problematic at these voltage levels.

Implemented in Standard CMOS

Despite the comprehensive use of subthreshold voltages in the SPOT™ platform, Ambiq Micro’s products behave just like any other semiconductor device and they are implemented using industry-standard CMOS manufacturing flows. The one difference: dramatically reduced power consumption.

Applications

MCUs Applications

  • Consumer medical devices
  • Consumer electronics
  • Smart watches
  • Smart meters
  • Battery-powered applications
  • Wearable electronics
  • Wireless sensors
  • Activity and fitness monitors
  • Beacons
  • Remote sensing
  • Motion and tracking devices
  • Home automation
  • Light control applications
  • Wireless mice and keyboards
  • Alarms and security system
  • Toys

Supplier Profile

Company Overview

Ambiq Micro was founded in 2010 on the notion that extremely low power semiconductors are the key to the future of electronics. They developed a patented Subthreshold Power Optimized Technology (SPOT™) platform that dramatically reduces the amount of power consumed by semiconductors.

Normal CMOS processes are working with an internal core voltage above the threshold voltage a transistor needs to make a logical low or high decision. Therefore most cores are working at 1.8V or 1.2V depending on the CMOS process.

By applying SPOT™ on a standard CMOS process, the internal core voltage can be minimized to 0.5V. While the energy consumption is proportional to the squared voltage, SPOT™ can reduce energy usage by up to 13 times!