On-device AI



Datasheet and Guides


Sample and Buy


  • Real-time Text-to-Speech (TTS) and Keyword Spotting (KWS) processing without a cloud server
  • Multilingual TTS and KWS support
  • Embedded ARM® Cortex®-M4F (180MHz)
  • On-chip inference accelerator (IX)
  • – Utilizes CNN architecture with hardware activation functions (tanh and ReLU)
    – 128 MACs/cycle @FP16, 46.08GFLOPS @FP16
  • DRAM-Free Architecture
  • Internal memory
    – 128KB Program Memory
    – 256KB Data Memory
  • 1MB Shared Memory with IX
    – Versatile interfaces
    – UART/I2C/SPI
    – Audio output: DDAC
    – Digital mic input: PDM
    – 4-channel 12-bit SAR ADC
    – USB2.0 Full Speed
  • Dual QSPI interfaces for external SPI NAND and SPI NOR Flash memory
  • Lower Power Consumption
  • Power management with sleep, stop, and standby modes
    – Wake-up options: RTC, GPIO, PDM
  • Integrated power management components: LDO, POR, BOD

Physical Characteristics

  • Operating voltages
    – External supply voltage: 3.3V
    – I/O supply voltage: 3.3V
    – Analog core voltage: 1.2V
    – Digital core voltage: 1.2V
  • Operating temperature: -40°C ~ 85°C
  • Available in 8×8 0.4mm pitch 68-QFN package

Block Diagram