Microchip Technology CEC173x RT Platform Root of Trust Controllers

Microchip Technology CEC173x Real-Time Platform Root of Trust Controllers designed for servers, telecommunications, networking, and industrials. The CEC173x highly configurable, mixed-signal, advanced I/O controller contains a 32-bit 96MHz ARM® Cortex- M4 processor core with closely coupled memory for optimal code execution and data access. The device features an immutable Boot ROM embedded in the design, ideal for storing the power on/boot sequence and APIs available during run time.

When VTR_REG power is applied to the Microchip CEC173x, the secure boot loader API downloads the firmware image from internal Flash storage. Programming capability for this Flash is supplied by various means, allowing system designers to customize the device’s behavior while preserving the integrity of the image by cryptographic signatures.


  • Hardware CNSA-based secure boot (P-384)
  • AES128, AES192, and AES256
  • SHA-2, SHA-256, and SHA-512
  • RSA-1024 to RSA-4096
  • ECDSA, EC-KCDSA, and Ed25519
  • True random number generator (SP800-90B)
  • SPI Boot Flash monitoring and intervention (1.8V or 3.3V)
  • Key management engine
  • Transfer of ownership
  • Device attestation
  • Hardware-based Physically Unclonable Function (PUF)
  • 84-pin and 64-pin package sizes (7mm x 7mm x 0.8mm and 5.5mm x 5.5mm x 0.92mm)
  • Differential power analysis countermeasures
  • User-configurable 3.3V or 1.8V power spec
  • Designed for NIST 800-193 platform firmware resiliency
  • Designed for open compute project security
  • 7mm x 7mm footprint
  • Internal QSwitches


Block Diagram

Block Diagram - Microchip Technology CEC173x RT Platform Root of Trust Controllers
Published: 2023-09-15 | Updated: 2023-10-24