MCHPATECC608B-MAHDA-S
Overview
The ATECC608B-MAHDA-S is a secure element from Microchip's CryptoAuthentication family, designed to provide hardware-based key storage and cryptographic acceleration. It supports ECDSA sign-verify, ECDH key agreement, and AES-128 encryption to protect IoT nodes against cloning and unauthorized access. The device features an ultra-low sleep current of 3uA and communicates over a standard I2C interface.
Why Choose This Part
This IC offers high-security asymmetric key generation and storage in a compact 2x3mm UDFN package, effectively isolating sensitive credentials from the main MCU's memory. It includes hardware acceleration for NIST P256 elliptic curves and a high-quality NIST-compliant random number generator, ensuring robust entropy for cryptographic operations.
Applications
Key Specifications
Getting Started
Engineers can evaluate this part using the Microchip Trust Platform and the CryptoAuthTrustPlatform development kit. Integration is simplified using the CryptoAuthLib library, which provides a C-based API for interacting with the device over I2C. Ensure the hardware layout accounts for the unique 72-bit serial number and monotonic counters for anti-replay protection.
