ATECC608C-SSHDA-T

Specialized ICS Overview

The ATECC608C-SSHDA-T is a CryptoAuthentication™ security IC from Microchip Technology, housed in an 8-lead SOIC package. It provides hardware-based key storage for up to 16 keys or certificates and supports NIST P256 elliptic curve cryptography (ECDSA/ECDH). The device features hardware acceleration for SHA-256, HMAC, and AES-128 encryption. It operates on a 2.0V to 5.5V supply voltage with a standard I²C interface at speeds up to 1 MHz. Designed for extended industrial applications, it functions within a temperature range of -40°C to +100°C.

Specialized ICS Feature Summary

• Hardware-accelerated asymmetric and symmetric cryptographic operations including ECDSA, ECDH, SHA-256, and AES-128.
• Secure storage for up to 16 keys, certificates, or data with configurable access restrictions.
• Supports TLS 1.2/1.3 networking protocols via PRF/HKDF calculation and ephemeral key generation.
• Integrated high-quality random number generator compliant with NIST SP 800-90A/B/C standards.

Specialized ICS Applications

• IoT network endpoint key management and authentication
• Secure boot and protected firmware download validation
• Small message encryption and PII data protection
• Ecosystem control and anti-cloning verification

Specialized ICS Procurement Notes

Verify the specific ordering suffix 'SSHDA' against official Microchip documentation to confirm the exact package type (SOIC) and temperature rating. Ensure compatibility with existing I²C bus configurations and power supply rails ranging from 2.0V to 5.5V before procurement.

Specialized ICS Selection Notes

Select this component for designs requiring backward compatibility with ATECC608B/A while needing extended temperature support up to +100°C. It serves as a direct upgrade path for systems previously using ATECC508A or ATECC608A, offering enhanced security without software modifications.

Specialized ICS Part Context

This part belongs to the ATECC608 family of CryptoAuthentication™ devices. The ATECC608C variant offers improved security features over the ATECC608B while maintaining full functional and pinout compatibility. It is designed to simplify migration for existing secure element implementations.

Specialized ICS Replacement Considerations

The ATECC608B-SSHDA-T is a compatible predecessor with identical pinouts and functionality but may have different temperature ratings. Verify if the extended +100°C operating range is required; if not, the B-series variant may be suitable.