MCHPATECC608A-SSHDA-B
Overview
The ATECC608A-SSHDA-B is a secure element from Microchip's CryptoAuthentication family designed to provide hardware-based key storage and cryptographic acceleration. It supports asymmetric algorithms like ECDSA and ECDH, symmetric functions including SHA-256 and AES-128, and features a high-quality NIST-compliant random number generator. Operating over an I2C interface, this IC allows designers to add robust security to embedded systems with minimal power overhead.
Why Choose This Part
This device offloads complex cryptographic calculations from the host MCU, reducing power consumption and improving performance during handshakes. Its secure hardware storage protects sensitive keys from physical attacks and logical extraction, which is not possible in standard flash memory. The wide operating voltage of 2V to 5.5V and extremely low 150uA sleep current make it ideal for battery-powered IoT applications.
Applications
Getting Started
To begin development, use the CryptoAuthTrust Platform or the DT100104 development kit which features an ATECC608A socket. Microchip provides the CryptoAuthLib C-library, which can be integrated into various MCU toolchains to handle I2C communication and command execution. Engineers should download the ACES (Atmel Configurator and Execution Space) tool to configure the data zones and slots before locking the device.
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