i.MX RT600 crossover MCU with Arm® Cortex®-M33 and DSP cores

The i.MX RT600 is a crossover MCU family optimized for 32-bit immersive audio playback and voice user interface applications combining a high-performance Cadence® Tensilica® HiFi 4 audio DSP core with a next-generation Cortex-M33 core. The i.MX RT600 family of crossover MCUs is designed to unlock the potential of voice-assisted end nodes with a secure, power-optimized embedded processor.

The i.MX RT600 family provides up to 4.5MB of on-chip SRAM and several high-bandwidth interfaces to access off-chip flash, including an Octal/Quad SPI interface with an on-the-fly decryption engine. In addition, the family offers a rich set of peripherals, EdgeLock 400A security* and extremely low-power consumption with reduced power modes and fast wake-up times.

*A device that incorporates EdgeLock 400A security supports several on-chip security capabilities and is built on a foundation of secure boot, secure debug, and secure life cycle management designed to resist remote and local software attacks.



  • Highly optimized Cadence Tensilica HiFi 4 DSP engine
    • Featuring emerging multichannel object-based audio standards
    • Ideal for DSP-intensive applications
  • High-performing Arm® Cortex®-M33 core
    • Next-generation core based on the ARMv8-M architecture
    • Hardware co-processors provide accelerated support for additional DSP algorithms and cryptography
  • Extensive memory resources
    • 4.5 MB SRAM accessible to both cores and both DMA engines to simplify development complexity


Design Flexibility

  •  Improved power efficiency
    • Wide dynamic voltage and performance range
    • Simplified power modes with fast wake-up and low leakage
    • Configurable blocks of memory for individual power gating and retention
  •  Advanced audio subsystem interfaces
    • DMIC interface supporting eight channels and voice activation detect
    • Up to 8 x I2S interfaces for highperformance, multichannel audio
  •  External memory interface options
    • Octal/Quad SPI with cache and dynamic decryption
  •  Numerous connectivity and communication interfaces
    • SDIO for Wi-Fi®-enabled streaming
    • High-speed USB device/host and high-speed SPI interfaces

Advanced Security

  • Arm TrustZone®-M for asset protection
    • System-wide, secure resource isolation for trusted hardware
  • Secure boot mechanism with SRAM PUF or OTP-based unique key for hardware-based root of trust
  •  Symmetric and asymmetric cryptography acceleration
    • AES-256, SHA2-256
    • ECC and RSA
  • Secure debug authentication


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Target applications

  • Audio subsystem
  • ML-based edge applications
  • Voice recognition consumer electronics
  • Voice-enabled IoT devices

NXP i.MX RT600 Crossover MCU with Arm® Cortex®-M33 and DSP Cores