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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 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

? Internal High-Quality NIST SP 800-90A/B/C Random Number Generator (RNG)

? 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)

Applications

? IoT network endpoint key management & exchange

? Encryption for small messages and PII data

? Secure Boot and Protected Download

? Ecosystem Control, Anti-cloning