Features

• Cryptographic Co-Processor with Secure Hardware-Based Key Storage:
  • Protected storage for up to 16 keys, certificates or data
• Hardware Support for Asymmetric Sign, Verify, Key Agreement:
  • ECDSA: FIPS186-3 Elliptic Curve Digital Signature
  • ECDH: FIPS SP800-56A Elliptic Curve Diffie-Hellman
  • NIST Standard P256 (ECC secp256r1) Elliptic Curve Support
• Hardware Support for Symmetric Algorithms:
  • SHA-256 & HMAC Hash including off-chip context save/restore
  • AES-128: Encrypt/Decrypt, Galois Field Multiply for GCM
• Networking Key Management Support:
  • Turnkey PRF/HKDF calculation for TLS 1.2 & 1.3
  • Ephemeral key generation and key agreement in SRAM
  • Small message encryption with keys entirely protected
• Secure Boot Support:
  • Full ECDSA code signature validation, optional stored digest/signature
  • Optional communication key disablement prior to secure boot
  • Encryption/Authentication for messages to prevent on-board attacks
• JIL High Rating – Validated to JIL Application of Attack Potential to Smartcards and Similar Devices, Version 3.1
• Internal High-Quality NIST SP 800-90A/B/C True Random Number Generator (TRNG), NIST CMVP ESV Certified
• Two High-Endurance Monotonic Counters
• Unique 72-Bit Serial Number
• Two Interface Options Available:
  • High-Speed Single Wire Interface with One GPIO Pin
  • 1 MHz Standard I²C Interface
• 1.8V to 5.5V IO Levels, 2.0V to 5.5V Supply Voltage
• Two Temperature Ranges Available:
  • Standard Industrial Temperature Range: -40℃ to +85℃
  • Extended Industrial Temperature Range: -40℃ to +100℃
• <150 nA Sleep Current
• Packaging Options
  • 8-pad UDFN, 8-Lead SOIC and 3-Lead Contact Package Options
  • Die-on-Tape and Reel and WLCSP for Qualified Customers (Contact Microchip Sales)