ECC204-SSVDA-T

Specialized ICS Overview

The Microchip Technology ECC204-SSVDA-T is a CryptoAuthentication™ series security IC designed for disposable and ecosystem control applications. It provides hardware-based key storage for one ECC private key, two certificates, one symmetric key, and 64 bytes of user data. The device supports ECDSA P-256 signatures, SHA-256, and HMAC operations with an internal TRNG. It features a 400 kHz I²C interface and operates within an extended industrial temperature range of -40°C to +105°C. Packaged in an 8-SOIC format, it includes a monotonic counter and unique 72-bit serial number.

Specialized ICS Feature Summary

• Hardware-accelerated ECDSA P-256 signing and SHA-256/HMAC computation
• Secure field-programmable EEPROM storing ECC keys, certificates, and user data
• Internal NIST SP 800-90A/B/C compliant True Random Number Generator (TRNG)
• JIL High security rating against environmental, non-invasive, and invasive attacks

Specialized ICS Applications

• Ecosystem control through asymmetric authentication and PKI
• Disposable product and accessory authentication
• Anti-counterfeiting validation for OEM components
• Symmetric authentication using HMAC keys

Specialized ICS Procurement Notes

Verify the specific ordering suffix 'SSVDA' corresponds to the 8-SOIC package variant when sourcing. Confirm that the TrustCUSTOM provisioning flow is selected if custom credentials are required, as standard generic devices may not be available for direct purchase without configuration services.

Specialized ICS Selection Notes

Select this component for applications requiring secure companion authentication with microcontrollers. Ensure the host system supports the 400 kHz I²C interface or utilizes the SWI interface if pin count reduction is necessary. Verify that the application environment remains within the specified -40°C to +105°C operating temperature range.

Specialized ICS Part Context

The ECC204-SSVDA-T belongs to the Microchip CryptoAuthentication™ family, specifically the ECC20x series. It serves as a secure element for implementing trusted verification protocols. This part is functionally equivalent to the ECC204-TCSMS under the TrustCUSTOM provisioning model.

Specialized ICS Replacement Considerations

The ECC204-TCSMS is a confirmed equivalent part number representing the same functional device under the TrustCUSTOM provisioning service.

Specialized ICS FAQ

What cryptographic standards does the ECC204 support?

The device supports ECDSA based on FIPS 186-4/5 with NIST P-256 curves, SHA-256 hashing, and HMAC/SHA-256.

How many keys and certificates can be stored?

It stores one ECC private key, one device certificate, one CA signer certificate, and one symmetric secret key.

Is the device resistant to physical attacks?

Yes, it has achieved a JIL High score for resistance to attackers and includes tamper-resistant countermeasures against fault attacks.