Apollo4

The Apollo4 SoC family is the 4^th generation system processor solution built upon the Ambiq^® proprietary Subthreshold Power-Optimized Technology (SPOT^®) platform. Apollo4's complete hardware and software solution enables the battery-powered endpoint devices of tomorrow to achieve a higher level of intelligence without sacrificing battery life. Moreover, designers can securely develop and deploy products confidently with our secureSPOT^® technology and PSA-L1 certification.

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Securely develop and deploy products with confidence

Block Diagram for the Ultra-Low Power Apollo4 SoC

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With up to 192 MHz clock frequency enabled by Ambiq's turboSPOT^®, Apollo4 can achieve power efficiency as low as 5 µA/MHz when executing from SRAM and MRAM with cache. Coupled with up to 2MB of MRAM and 1.8MB of SRAM, the Apollo4 has more than enough compute and storage to handle complex algorithms and neural networks while displaying vibrant, crystal-clear, and smooth graphics. If additional memory is required, external memory is supported through Ambiq’s multi-bit SPI and eMMC interfaces.

Apollo4 is purpose-built to serve as both an application processor and a coprocessor for battery-powered endpoint devices, including smartwatches, children’s watches, fitness bands, animal trackers, far-field voice remotes, predictive health and maintenance, and the smart home.

Apollo4 enables manufacturers to create leading-edge endpoint devices leveraging the unique SPOT platform with Ambiq’s easy-to-use, rich peripheral set.

Feature Highlights

Innovate for a wide range of endpoint IoT devices with powerful processing capability using an Arm^® Cortex^®-M4F core and turboSPOT^® high frequency operation. With ample memory, this platform is engineered to drive battery-powered graphics, audio solutions, and more.

Push the longevity of battery-operated devices with unprecedented power efficiency. Make the most of your power budget with our flexible, low-power sleep and deep sleep modes with selectable levels of RAM/cache retention.

Use our highly energy efficient 2/2.5D graphics accelerator to implement high quality graphics. A MIPI DSI high-speed interface coupled with support for 32-bit color and 500x500 pixel resolution enables developers to create compelling Graphical User Interfaces (GUIs) for battery-operated IoT devices.

Experience truly always-on voice processing with an optimized noise cancelling algorithms for clear voice. Achieve multi-channel processing and high-fidelity digital audio with enhanced digital filtering and low power audio interfaces.

Connect to more devices with our wide selection of low power communication ports, including USB. Use SDIO/eMMC for additional storage to help meet your application memory requirements.

Develop with AmbiqSuite SDK using your preferred tool chain. We offer support documents and reference code that can be repurposed to accelerate your development time. In addition, our outstanding technical support team is ready to help bring your design to production.

Design with confidence using Ambiq's robust secureSPOT^® technology to ensure a complete end-to-end secure environment for your application. Our solution is PSA-L1-certified and provides a wide range of security features such as Secure Boot, secure over-the-air (OTA) and wired updates, secure key storage in OTP memory, secure debug and more. In addition, hardware cryptographic accelerators support a True Random Number Generator (TRNG) and an array of encryption algorithms.

Purpose-built SoC

Extreme Low Power Modes

Superior Graphics and Display

Always-on Audio

More Options with Low Power Peripherals

Connect to more devices with our wide selection of low power communication ports, including USB. Use SDIO/eMMC for additional storage to help meet your application memory requirements.

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Safe and Secure

Specifications

Ultra-Low Supply Current
5 μA/MHz executing from MRAM (with cache)
Low-power sleep and deep sleep modes with selectable levels of RAM/cache retention

High-Performance Arm Cortex-M4 Processor with FPU
Up to 192 MHz clock frequency
Floating Point Unit (FPU)
Memory Protection Unit (MPU)

Security Features
Secure boot
Secure OTA and wired updates
Secure debug
Secure key storage
Hardware crypto accelerators
TRNG

Ultra-Low Power Memory
Up to 2MB of non-volatile MRAM for code/data
Up to 1.8MB of low power RAM for code/data

Ultra-Low Power Interface for On- and Off-Chip Sensors
12-bit ADC, 11 selectable input channels
Up to 2.8 MS/s sampling rate
Temperature sensor with ±3°C accuracy

Ultra-Low Power Flexible Serial Peripherals
3x 2/4/8-bit SPI master interfaces
8x I²C/SPI masters for peripheral communication
1x SPI slave for host communications
4x UART modules with flow control
1x USB 2.0 FS device controller
1x SDIO (SD3.0)/1x eMMC (v4.51)

Display
MIPI DSI 1.2 with 2 data lanes up to 500 Mbps
Up to 454 x 454 resolution
4 layers with alpha blending
Frame Buffer Decompression

Graphics
2D/2.5D graphics accelerator
Full Alpha Blending
Texture and Frame Buffer Compression

Audio Processing
4x stereo Digital microphones
2x full-duplex I²S ports with ASRC

Rich Set of Clock Sources
32 MHz-32 kHz Crystals (XTAL) oscillators
1 kHz Low Frequency RC (LFRC) oscillator
2x High Frequency RC (HFRC) oscillator

Power Management
Operating range: 1.71-2.2 V, –20°C to 60°C
SIMO buck
Multiple I/O voltages supported

Applications
Smart watches/bands
Wireless sensors and IoT
Activity and fitness monitors
Children's watches
Animal trackers
Motion and tracking devices
Alarms and security system
Far-field voice remotes
Consumer medical devices
Predictive maintenance
Smart home

Package Options
5 mm x 5 mm, 146-pin BGA with 105 GPIO

Ordering Information
AMAP42KK-KCR-B2 (BGA)

Apollo4

Block Diagram for the Ultra-Low Power Apollo4 SoC

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Feature Highlights

Specifications

Documents

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