Product specifications
Apollo4 Lite maintains feature-rich capability and optimizes memory and peripherals to balance the Apollo4 product family with a lightweight solution. It is conveniently pin-compatible to its superset variant, Apollo4 Plus, providing developers the optimum flexibility to innovate with smooth, vibrant graphics in their next generation wearables and smart IoT devices.
The Apollo4 Lite SoC is built upon Ambiq’s proprietary Subthreshold Power-Optimized Technology (SPOT®) platform. The Apollo4 Lite 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 Lite includes a 32-bit Arm® Cortex®-M4 core with Floating Point Unit embedded in a BGA package.
With 2MB of MRAM and 1.4MB of SRAM, the Apollo4 Lite has optimal compute and storage to process 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 high bandwidth multi-bit SPI and eMMC interfaces.
The Apollo4 Lite is purpose-built to serve as both an application processor and a coprocessor for battery-powered endpoint devices, including smartwatches, fitness bands, animal trackers, voice activated remotes, digital health products, industrial maintenance, and smart home IoT devices.
Features and Specifications
Ultra-Low Supply Current
- 4 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
- Memory Protection Unit (MPU)
- Secure Boot
- PSA-L1 certified
Ultra-Low Power Memory
- Up to 2MB of non-volatile MRAM for code/data
- Up to 1.4 MB 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
- 2x 2/4/8-bit SPI master interface
- 1x 2/4/8/16-bit SPI master interface
- 8x I2C/MSPI for peripheral communication
- 1x SPI Slave for host communications
- 4x UART modules with flow control
- 1x SDIO (SD3.0)/1x eMMC (v4.51)
Display
- Up to 500 x 500 resolution
- Texture and Frame Buffer Compression
Graphics
- 2D/2.5D graphics accelerator
- Texture and Frame Buffer Compression
- Dithering and hardware anti-aliasing
Audio Processing
- 1x stereo gigital microphone
- 1x full-duplex I²S port
Rich Set of Clock Sources
- 16-52 MHz and 32.768 kHz Crystal (XTAL) oscillators
- 1 kHz Low Frequency RC (LFRC) oscillator
- 2x High Frequency RC (HFRC) oscillator – 192/384 MHz
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
- Digital health devices
- Animal trackers
- Motion and tracking devices
- Alarms and security system
- Far-field voice remotes
- Predictive maintenance
- Smart home
Package Options
5mm x 5mm, 146-pin BGA with 84 GPIO
Ordering Information
- AMAP42KL-KBR (BGA)
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