MCHPATSHA204A-MAHDA-T
Overview
The ATSHA204A-MAHDA-T is a high-security authentication device from Microchip's CryptoAuthentication family that utilizes hardware-based key storage. It features a SHA-256 hash algorithm and 664 bytes of EEPROM to support secure symmetric authentication for both host and client operations. This compact 8-UDFN component is designed to protect against cloning and unauthorized tampering in sensitive embedded systems.
Why Choose This Part
This device offers extremely low power consumption with a sleep current of 0.15 uA and a wide operating voltage range from 2V to 5.5V. Its high-quality internal hardware random number generator and unique 72-bit serial number provide robust foundations for cryptographic protocols. The 8-UDFN package allows for a minimal PCB footprint, ideal for space-constrained IoT applications.
Applications
Key Specifications
Getting Started
To begin development, use the Microchip CryptoAuth Trust Platform which includes development kits like the ATCRYPTOAUTH-XPRO or DM320109. Implementation requires interfacing via I2C or Single-Wire Interface (SWI) and utilizing the CryptoAuthLib library to manage command execution and key provisioning. Ensure the configuration zone is locked after setup to permanently protect the stored secrets.
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