Ambiq Apollo4 Plus SoC

Ambiq Apollo4 Plus SoC offers additional on-chip memory, enhanced graphics, and increased memory performance to the Apollo4 SoC family. The Apollo4 Plus allows next-generation wearables and smart device developers to supply more stunning user interface (UI) effects and overall user experience to take innovative products to the next level. The Apollo4 Plus SoC is built upon Ambiq’s proprietary Subthreshold Power-Optimized Technology (SPOT®) platform.

The Ambiq Apollo4 Plus SoC complete hardware and software solution enables the battery-powered endpoint devices of tomorrow to achieve a higher level of intelligence without sacrificing battery life. The Apollo4 Plus is available in the BGA package option.

With up to 2MB of MRAM and 2.75MB of SRAM, the Apollo4 Plus has enough computing power and storage to handle complicated algorithms and neural networks while displaying vibrant, crystal-clear, and smooth graphics. External memory is supported through Ambiq’s high-bandwidth multi-bit SPI and eMMC interfaces if additional memory is needed.

The Apollo4 Plus is purpose-built to operate as an application processor and a co-processor 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.

Features

Ultra-low supply current
- 4µA/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 192MHz clock frequency
- Floating Point Unit (FPU)
- Memory Protection Unit (MPU)
Ultra-low power memory
- Up to 2MB of non-volatile MRAM for code/data
- Up to 2.75MB of low-power RAM for code/data
Ultra-low power interface for on- and off-chip sensors
- 12-bit ADC, 11x selectable input channels
- Up to 2.8MS/s sampling rate
- Temperature sensor with ±3°C accuracy
Ultra-low power flexible serial peripherals
- 2x 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 HS/FS device controller
- 1x SDIO (SD3.0)/1x eMMC (v4.51)
Display
- MIPI DSI 1.2 with 2x data lanes up to 500Mbps
- Up to 500 x 500 resolution
- 4-layers with alpha blending
- Frame buffer decompression

Graphics
- 2D/2.5D graphics accelerator
- Full alpha blending
- Texture and frame buffer compression
- Anti-aliasing
- Dithering
- Vector graphics
Audio processing
- 1x Stereo low power analog microphones
- 4x Stereo digital microphones
- 2x full-duplex I²S ports with ASRC
Rich set of clock sources
- 16MHz to 52MHz and 32.768kHz crystal (XTAL) oscillators
- 1kHz Low-frequency RC (LFRC) oscillator
- 2x High-frequency RC (HFRC) oscillator
Power management
- Operating range of 1.71V to 2.2V, -20°C to +60°C
- SIMO buck
- Multiple I/O voltages supported
5mm x 5mm, 146-pin BGA package with 105x GPIOs

Applications

Smartwatches/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

Ambiq Apollo4 Plus SoC

Features

Applications

Block Diagram

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