Infineon PSOC Edge E81, E83, E84 Cortex-M55/M33 MCUs target Machine Learning-enhanced IoT, consumer and industrial applications

Infineon PSOC Edge E81, E83, and E84 MCU series are dual-core Cortex-M55/M33 microcontrollers with optional Arm Ethos U55 microNPU and 2.5D GPU designed for IoT, consumer, and industrial applications that could benefit from machine learning acceleration.

This is a follow-up to the utterly useless announcement by Infineon about PSoC Edge Cortex-M55/M33 microcontrollers in December 2023 with the new announcement introducing actual parts that people may use in their design. The PSOC Edge E81 series is an entry-level ML microcontroller, the PSOC Edge E83 series adds more advanced machine learning with the Ethos-U55 microNPU, and the PSOC Edge E84 series further adds a 2.5D GPU for HMI applications.

PSOC Edge E84 microcontroller
Blog diagram for Infineon PSOC Edge E84 microcontroller

Infineon PSOC Edge E81, E83, E84-series specifications:

  • MCU cores
    • Arm Cortex-M55 high-performance CPU system up to 400 Mhz with FPU, MPU, Arm Helium support, 256KB i-TCM, 256KB D-TCM, 4MB SRAM (Edge E81/E83) or 5MB SRAM (Edge E84)
    • Arm Cortex-M33 low-power CPU system up to 200 MHz with 1MB SRAM, 64KB ROM
  • GPU (Edge 84 only) – Low-power 2.5D GPU
  • AI accelerators
    • All models – Infineon NNLite AI accelerator,
    • Edge E83 and E84 – Arm Ethos-U55 with 128 MACs, support for smart audio and computer vision (position detection, face recognition, object detection)
  • Storage – 2x SMIF, 2x SD host controllers
  • Display (Edge 84 only) – MIPI DSI/DBI up to 1024×768 resolution
  • Audio
    • All models
      • ULP Always ON progr. analog for voice, audio, sensing
      • 4x analog mic, 6x digtial mic
      • NNLite wake word and acoustic activity detection
    • Edge 83/84 only – Ethos-U55-based wake word and acoustic activity detection, full voice inferencing
  • Networking – 10/100Mbps Ethernet
  • USB – USB HS/FS
  • Peripherals and I/Os – CAN Bus, SPI, UART, I2C, I3C, I2S, 12-bit ADC, etc…
  • Security – Secure enclave, Edge Protect category 2 and 4
PSOC Edge E84 development board
Blurry photo of the PSOC Edge development kit…

The PSOC Edge family will be supported by the ModusToolbox software including board support packages (BSPs), peripheral driver library (PDL), middleware such as CAPSENSE, and integration with the Imagimob Studio AI solution and its off-the-shelf ML models called “Ready Models”. There’s limited information about the PSOC Edge development kit, but we do know it features a system-on-module, Arduino expansion headers, a sensor suite, BLE connectivity for provisioning, and Wi-Fi for smartphone and cloud connectivity. It was also showcased at Embedded World 2024 running a demo that can be seen in the video embedded below.

The PSOC Edge 81, 83, and 84-Series target appliances, speakers, wearables, robotics, and other smart home devices including connected IoT products. The PSOC Edge E81 provides entry-level ML computing for features such as anomaly detection, predictive maintenance, acoustic event detection, keyword spotting, wake word detection, voice prompts, and gesture/movement/presence detection. The Edge E83-series enables voice/audio wake-word detection with always-on acoustic activity detection mechanisms for battery-powered devices, while the PSOC Edge E84 can power similar applications with a graphical user interface.

The PSOC Edge family is only available to early-access customers for now, which may explain the lack of information and documentation. A few more details – including product briefs but not much else – may be found on the product page and in the press release.

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