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Apollo4 Blue Plus

Connecting Brilliance with Visual Excellence

Apollo4 Blue Plus keyvisual front mobile

The Apollo4 Blue Plus SoC is an ultra-low power solution for connected endpoint devices requiring advanced graphics and Bluetooth® Low Energy connectivity. Built on Ambiq’s SPOT® platform, it combines a 192 MHz Arm® Cortex®-M4 processor, Bluetooth Low Energy 5.4 with AoA/AoD support, up to 2.75 MB of low-power RAM, and a 2.5D GPU for smartwatches, medical devices, security systems, voice remotes, and consumer IoT products.

Performance Meets Power Savings

Apollo 4 Blue Plus

01

The Power to Innovate

Ultra-low power processing of 4µA/MHz at up to 192MHz with turboSPOT® enables next generation devices to do more for longer.

02

Visual Brilliance

High performance 2.5D GPU featuring full alpha blending, vector graphics, and more for vibrant, crystal-clear, and smooth graphics.

03

Uncompromising Security

Certified PSA L1 running advanced secureSPOT® for secure applications.

04

AI-Powered Possibilities

Experience intelligence at the endpoint, including activity recognition, speech enhancement and de-noising, and real-time health analytics.

Block Diagram Apollo4 Plus Blue

Apollo4 Blue Plus

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
  • Floating Point Unit (FPU)
  • Memory Protection Unit (MPU)

Bluetooth Low Energy 5.4

  • 2 Mbps, extended advertising packets
  • Angle of Arrival (AOA) and Angle of Departure (AOD)
  • Tx: Up to +6 dBm output power
  • Rx Sensitivity: -95 dBm

Security Features

  • Secure Boot
  • Secure over-the-air (OTA) updates
  • Secure wired updates
  • Key Revocation

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, 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 interfaces
  • 2/4/8/16-bit SPI master interface (16-bit SPI available in AMA4BPK-KXR only)
  • 7x 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 500 x 500 resolution
  • 4 layers with alpha blending
  • Frame Buffer Decompression

Graphics


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  • 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

  • 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
  • Animal trackers
  • Motion and tracking devices
  • Alarms and security system
  • Far-field voice remotes
  • Consumer medical devices
  • Predictive maintenance
  • Smart home

Package Options

  • 4.7 mm x 4.7 mm, 131-pin SiP BGA

Ordering Information

  • AMA4B2KP-KXR (BGA)
  • AMA4B2KP-KBR (BGA)

Design Resources

Additional Documentation

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Frequently Asked Questions (FAQ)

  • The Apollo4 Blue Plus is an ultra-low-power system-on-chip (SoC) designed for connected edge devices. It combines a 192 MHz Arm® Cortex®-M4 processor with floating-point unit (FPU), Bluetooth® Low Energy 5.4 connectivity, and a high-performance 2D/2.5D graphics accelerator.

  • The Apollo4 Blue Plus features an Arm® Cortex®-M4 processor with a floating-point unit (FPU) and Memory Protection Unit (MPU), operating at up to 192 MHz. Ambiq’s turboSPOT® technology enables dynamic performance scaling for demanding endpoint workloads while maintaining ultra-low-power operation. 

  • The Apollo4 Blue Plus supports Bluetooth® Low Energy 5.4 with 2 Mbps operation, extended advertising packets, Angle of Arrival (AoA) and Angle of Departure (AoD), up to +6 dBm transmit power, and -95 dBm receiver sensitivity.

  • Ambiq’s turboSPOT® technology enables the Apollo4 Blue Plus to scale performance up to 192 MHz while delivering ultra-low-power processing at 4 µA/MHz executing from MRAM with cache. This helps battery-powered edge devices handle demanding workloads while minimizing energy consumption.

  • The Apollo4 Blue Plus is PSA Certified Level 1 and features Ambiq’s secureSPOT® security technology. Security capabilities include Secure Boot, secure over-the-air (OTA) updates, secure wired updates, and key revocation.

  • The Apollo4 Blue Plus features a 2D/2.5D graphics accelerator with full alpha blending, vector graphics, anti-aliasing, dithering, and texture and frame buffer compression. It supports displays with resolutions up to 500 × 500 pixels.

  • The Apollo4 Blue Plus provides up to 2 MB of non-volatile MRAM for code and data and up to 2.75 MB of low-power RAM for code and data.

  • The Apollo4 Blue Plus is designed for smartwatches and fitness bands, wireless sensors and IoT devices, activity and fitness monitors, children’s watches, animal trackers, motion and tracking devices, alarms and security systems, far-field voice remotes, consumer medical devices, predictive maintenance, and smart home applications.

  • The Apollo4 Blue Plus is available in a compact 4.7 × 4.7 mm, 131-pin SiP BGA package. Ordering options include AMA4B2KP-KXR and AMA4B2KP-KBR. 

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