The Apollo4 SoC family is the 4th generation system processor solution built upon Ambiq's 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.
Apollo4 with its 32-bit Arm® Cortex®-M4 core with Floating Point Unit (FPU) is implemented on the TSMC® 22nm ULL process.
With up to 2MB of MRAm and 1.8MB of SRAM, the Apollo4 Blue 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, an external memory is supported through Ambiq's multi-bit SPI and eMMC interfaces.
The Apollo4 is purpose-built to serve as both an application processor and a coprocessor for battery-powered endpoint devices, including smartwatches, childrens's watches, fitness bands, animal trackers, far-field voice remotes, predictive health and maintenace, and the smart home.
Features and Specifications:
Ultra-Low Supply Current
- 3 μA/MHz executing from MRAM (with cache)
- 3 μA/MHz executing from SRAM
- Low power sleep mode with RTC and 8KB SRAM retention
High-Performance ARM Cortex-M4 Processor with FPU
- Up to 192 Mhz clock frequency
- Floating Pount Unit (FPU)
- Memory Protection Unit (MPU)
- Secure Boot
Ultra-Low Power Memory
- Up to 2MB of non-volatile MRAM for code/data
- Up to 1.8MB of low power SRAM for code/data
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 USB 2.0 HS/FS device controller
- 1x SDIO (SD3.0)/1x eMMC (v4.51)
Display
- MIPI DSI 1.2 with 2 data lanes up to 500Mbps
- Up to 640 x 480 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
- 1x stereo Low Power Analog microphones
- 4x stereo Digital microphones
- 2x full-duplex I2S ports with ASRC
Rich Set of Clock Sources
- 16-52 MHz and 32.768 kHz Crystal (XTAL) oscillators
- 1kHz Low Frequancy RC (LFRC) oscillator
- 2x High Frequency RC (HFRC) oscillator - 192/384 MHz
Power Management
- Operating range: 1.71-2.2V, -40°C to 85°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
