ATECC608C-TNGTLSS-C

Specialized ICS Overview

The Microchip ATECC608C-TNGTLSS-C is a CryptoAuthentication™ hardware security module providing secure key storage and cryptographic acceleration. It supports up to 16 keys, certificates, or data in protected EEPROM. Key algorithms include ECDSA (P256), ECDH, SHA-256, HMAC, and AES-128 with GCM support. The device features a JIL HIGH rating, NIST SP 800-90A/B/C certified TRNG, and unique 72-bit serial number. It operates on 2.0V–5.5V supply voltage with <150 nA sleep current. Interfaces include 1 MHz I2C and Single-Wire Interface (SWI). This specific variant is provisioned for Trust & Go TLS applications.

Specialized ICS Feature Summary

• Hardware-based secure storage for up to 16 keys, certificates, or data
• Supports ECDSA, ECDH, SHA-256, HMAC, and AES-128/GCM
• JIL HIGH rated vulnerability resistance and NIST CAVP certified algorithms
• Integrated True Random Number Generator (TRNG) compliant with NIST SP 800-90B

Specialized ICS Applications

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

Specialized ICS Procurement Notes

Verify the ordering suffix 'TNGTLS' indicates factory provisioning for Trust & Go TLS use cases. Confirm package type is 8-SOIC and temperature range matches design requirements. Check for specific revision levels if migrating from older ATECC608 variants. Ensure compatibility with existing I2C or SWI bus configurations.

Specialized ICS Selection Notes

Select this part when high-security authentication is required for IoT devices. It is suitable for designs needing TLS 1.2/1.3 support without exposing private keys. Consider migration from ATECC608B or ATECC508A for enhanced security features. Verify that the host MCU can support the required I2C or SWI interface speeds.

Specialized ICS Part Context

The ATECC608C belongs to the CryptoAuthentication™ family, succeeding the ATECC608B with backward compatibility. It offers improved security over previous generations while maintaining similar command sets. The TNGTLS suffix denotes a pre-provisioned version for specific TLS implementations, simplifying integration for manufacturers requiring immediate deployment.

Specialized ICS Replacement Considerations

Direct replacement for ATECC608B in most designs due to pin and command compatibility. Migration from ATECC608A or ATECC508A requires review of configuration settings. No direct equivalent substitutes are listed; consult Microchip sales for alternative packages or unprovisioned variants.