Features

• Real-time TTS/STT processing without a cloud server
• Multilingual TTS/STT support (English, Korean, and Chinese) with speaker identification
• 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
• Internal memory
  – 128KB Program Memory
  – 256KB Data Memory
• 1MB Shared Memory with IX
  – Versatile interfaces
  – UART/I2C/SPI
  – Audio output: /DDAC, I2C
  – 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
• Power management with sleep, stop, and standby modes
  – Wake-up options: RTC, GPIO, PDM
• Integrated power management components: LDO, POR, BOD