MCHPATECC608B-MAHDA-T
Overview
The ATECC608B is a high-security cryptographic co-processor that provides hardware-based key storage for asymmetric and symmetric algorithms. It integrates ECDH and ECDSA support for secure boot and key agreement, alongside SHA-256 and AES-128 hardware accelerators. The device connects via I2C and is designed to protect private keys from physical and logical attacks.
Why Choose This Part
The IC features extremely low power consumption, drawing only 3uA in sleep mode and as little as 2mA during I2C wait states. It provides a dedicated internal high-quality NIST SP 800-90A/B/C random number generator and a unique 72-bit serial number. Hardware-based isolation ensures that private keys never leave the device, even during the execution of cryptographic commands.
Applications
Getting Started
Start development using the Microchip CryptoAuthentication Library (CryptoAuthLib), which supports various MCU architectures. For hardware evaluation, the Microchip EV24R03A (ATECC608B Trust Development Board) provides a plug-and-play solution for testing secure boot and authentication workflows.



