MCHPATECC608A-MAHCZ-S
Overview
The ATECC608A-MAHCZ-S is a secure cryptographic co-processor from Microchip's CryptoAuthentication family, designed to provide hardware-based key storage and cryptographic acceleration. It supports asymmetric algorithms like ECDSA and ECDH, alongside symmetric functions such as AES-128 and SHA-256. This specific variant features a Single-Wire Interface (SWI) and is housed in a compact 8-UDFN package, making it suitable for space-constrained designs requiring robust security.
Why Choose This Part
It provides ultra-low power consumption with a sleep current of only 30 uA while keeping sensitive keys isolated from the host processor in high-security hardware. The integrated NIST SP 800-90A/B/C random number generator and monotonic counters ensure cryptographic operations are resistant to replay attacks and manipulation.
Applications
Key Specifications
Getting Started
To begin development, use the Microchip CryptoAuthLib library which provides a C-based API for interacting with the device's functions. Evaluation is commonly done using the CryptoAuthentication Starter Kit (DM320109) or by connecting the chip to a host MCU via the Single-Wire Interface. Configuration of the 16 slots in the EEPROM is a critical first step and must be locked during production to ensure security.
