ATECC608C-TNGTLSU-C

Specialized ICS Overview

The ATECC608C-TNGTLSU-C is a CryptoAuthentication™ security IC providing hardware-based 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. The device features a unique 72-bit serial number and an internal NIST SP 800-90A/B/C certified True Random Number Generator (TRNG). It operates on a 2.0V to 5.5V supply with I²C interface speeds up to 1 MHz. The unit is pre-provisioned for Trust & Go TLS applications.

Specialized ICS Feature Summary

• Hardware-accelerated asymmetric and symmetric cryptography including ECDSA, ECDH, SHA-256, and AES-128.
• Pre-provisioned 'Trust & Go' configuration for immediate TLS/DTLS deployment without custom provisioning.
• JIL HIGH rating validated against attack potential standards; includes NIST CAVP algorithm certifications.
• Integrated high-quality TRNG compliant with NIST SP 800-90A/B/C and FIPS 140-3 ESV.

Specialized ICS Applications

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

Specialized ICS Procurement Notes

Verify the specific ordering suffix '-TNGTLSU-C' confirms the Trust & Go TLS pre-provisioning status and UDFN package type. Confirm that the 'C' suffix denotes the current revision of the ATECC608C family. Ensure the procurement channel provides documentation verifying the factory provisioning state required for turnkey TLS implementations.

Specialized ICS Selection Notes

Select this variant when immediate deployment of TLS 1.2/1.3 endpoints is required without managing internal provisioning processes. The UDFN package suits space-constrained surface-mount designs. Verify compatibility with host systems requiring standard I²C interfaces at frequencies up to 1 MHz. Consider the JIL HIGH rating if physical tamper resistance is a critical design requirement.

Specialized ICS Part Context

This component belongs to the Microchip CryptoAuthentication™ family, succeeding the ATECC608B with enhanced security features while maintaining command set compatibility. The TNGTLSU-C designation indicates a specific factory-provisioned version optimized for TLS use cases, distinct from blank or user-provisionable variants within the same ATECC608C series.

Specialized ICS Replacement Considerations

Direct migration from ATECC608B is supported due to backwards compatibility. For designs using ATECC508A or ATECC608A, consult AN5078 for migration guidance. No direct pin-compatible substitutes exist outside the ATECC608C family for this specific pre-provisioned configuration.