Benefits and Features

● ECC-256 Compute Engine

• FIPS 186 ECDSA P256 Signature and Verification

• ECDH Key Exchange with Authentication Prevents

Man-in-the-Middle Attacks

• ECDSA Authenticated R/W of Configurable Memory

● FIPS 180 SHA-256 Compute Engine

• HMAC

● SHA-256 OTP (One-Time Pad) Encrypted R/W of

Configurable Memory Through ECDH Established Key

● Two GPIO Pins with Optional Authentication Control

• Open-Drain, 4mA/0.4V

• Optional SHA-256 or ECDSA Authenticated On/Off

and State Read

• Optional ECDSA Certificate to Set On/Off after

Multiblock Hash for Secure Boot

● RNG with NIST SP 800-90B Compliant Entropy

Source with Function to Read Out

● Optional Chip Generated Pr/Pu Key Pairs for ECC

Operations

● 17-Bit One-Time Settable, Nonvolatile Decrement-

Only Counter with Authenticated Read

● 8Kbits of EEPROM for User Data, Keys, and Certificates

● Unique and Unalterable Factory Programmed 64-Bit

Identification Number (ROM ID)

• Optional Input Data Component to Crypto and Key

Operations

● I2C Communication Up to 1MHz

● Operating Range: 2.2V to 3.63V, -40°C to +85°C

● 6-Pin TDFN Package

Applications

● IoT Node Crypto-Protection

● Accessory and Peripheral Secure Authentication

● Secure Storage of Cryptographic Keys for a Host Controller

● Secure Boot or Download of Firmware and/or System

Parameters