MCHPATECC508A-MAHDA
Overview
The ATECC508A-MAHDA is a secure element from Microchip's CryptoAuthentication family designed to provide high-assurance hardware security. It utilizes Elliptic Curve Cryptography (ECC) to facilitate secure key storage, digital signatures, and challenge-response authentication for IoT nodes and embedded systems. With a low sleep current of 30uA and a wide operating voltage of 2V to 5.5V, it is optimized for battery-powered applications requiring robust protection against counterfeiting and unauthorized access.
Why Choose This Part
The device features a dedicated hardware accelerator for the NIST P-256 elliptic curve, significantly offloading cryptographic tasks from the host MCU. It includes 1280 bytes of EEPROM for secure storage of keys and certificates, protected by physical security measures against side-channel attacks and tampering. The I2C interface and small 8-UDFN package make it easy to integrate into space-constrained designs without complex wiring.
Applications
Key Specifications
Getting Started
To evaluate this component, engineers typically use the CryptoAuth Trust Platform or the CryptoAuthentication Starter Kit (DM320109). Integration is managed through the Microchip CryptoAuthLib library, which provides C-based APIs for common functions like 'atcab_genkey' and 'atcab_sign'. Secure provisioning is required to lock the configuration and data zones before the device can perform cryptographic operations in a production environment.
ATECC508A Family
Also Consider
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