ATECC608C-SSVDA-T

Specialized ICS Overview

The ATECC608C-SSVDA-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 a standard I²C interface operating at speeds up to 1 MHz. Electrical specifications include a supply voltage range of 2.0 V to 5.5 V and an extended industrial temperature range of -40°C to +100°C. It includes a high-quality internal random number generator compliant with NIST SP 800-90A/B/C standards.

Specialized ICS Feature Summary

• Hardware-accelerated support for ECDSA, ECDH, SHA-256, HMAC, and AES-128 encryption/decryption.
• Secure storage for up to 16 keys, certificates, or data with configurable access restrictions.
• Unique 72-bit serial number and internal NIST-compliant Random Number Generator (RNG).
• I²C interface supporting clock frequencies up to 1 MHz.

Specialized ICS Applications

• IoT network endpoint key management and exchange.
• Secure boot and protected firmware download validation.
• Small message encryption and Personally Identifiable Information (PII) protection.
• Ecosystem control and anti-cloning authentication.

Specialized ICS Procurement Notes

Verify the specific suffix 'SSVDA' against the manufacturer's current product selection guide to confirm the exact package dimensions and tape/reel specifications. Ensure the ordering quantity aligns with the manufacturer's standard packaging requirements. Confirm that the extended temperature rating (-40°C to +100°C) matches the system design constraints before finalizing procurement.

Specialized ICS Selection Notes

Select this component when hardware-based key protection and NIST P256 compliance are required. The 8-lead SOIC package is suitable for surface-mount assembly. Verify that the host microcontroller supports the I²C protocol at the desired speed. Consider the power consumption characteristics, specifically the sleep current, if the application requires low-power standby modes.

Specialized ICS Part Context

This part belongs to the ATECC608 family, which offers enhanced security over previous generations like the ATECC608B while maintaining backward compatibility. The 'C' variant typically denotes specific silicon revisions or feature sets within the CryptoAuthentication line. It serves as a dedicated cryptographic co-processor to offload security tasks from the main MCU.

Specialized ICS Replacement Considerations

The ATECC608B is functionally compatible with the ATECC608C regarding configuration settings and commands. Migration between these variants is supported, though execution times for certain commands may differ. Verify pinout and electrical specifications to ensure seamless integration without hardware redesign.