ECC204-TFLXWPCU-HV

Specialized ICS Overview

The Microchip Technology ECC204-TFLXWPCU-HV is a specialized CryptoAuthentication IC designed for secure key storage and authentication. It supports ECDSA P-256, SHA-256, and HMAC operations with hardware-accelerated cryptographic engines. The device features an internal NIST SP 800-90A/B/C compliant random number generator and protected EEPROM for storing ECC private keys, certificates, and user data. It offers I2C and single-wire serial interfaces, operating within an extended industrial temperature range of -40°C to +105°C. This specific variant is provisioned as a custom unit intended for high-volume ecosystem control applications.

Specialized ICS Feature Summary

• Hardware-based security key storage with FIPS 140-3 compliance options
• Supports ECDSA P-256, SHA-256, and HMAC with internal RNG
• Extended industrial temperature range: -40°C to +105°C
• Provisioned custom configuration for specific application needs

Specialized ICS Applications

• Ecosystem control via asymmetric authentication/PKI
• One-time use and accessory authentication
• IoT cloud platform mutual authentication

Specialized ICS Procurement Notes

This component is a provisioned custom unit with a minimum order quantity of 40,000 pieces. It is supplied in bag packaging. Due to its customized nature, standard off-the-shelf availability does not apply. Verification of the specific provisioning parameters and custom configuration requirements is essential prior to procurement to ensure compatibility with the target system's security architecture.

Specialized ICS Selection Notes

Select this part when a pre-configured security solution is required for high-volume deployments. The ECC204 provides robust protection against physical attacks with JIL high-level certification. Ensure the host microcontroller supports either the 400kHz I2C or 125kbps SWI interface. The extended temperature range makes it suitable for demanding industrial environments where standard commercial grade parts may fail.

Specialized ICS Part Context

The ECC204 belongs to Microchip's TrustFLEX platform, which simplifies secure key configuration for mass production. This specific suffix indicates a custom-provisioned version optimized for cost-sensitive, high-volume applications. It serves as a companion device to microcontrollers, enabling secure boot, firmware updates, and device identity management without exposing sensitive keys in software.

Specialized ICS Replacement Considerations

Direct replacements must support identical cryptographic capabilities (ECDSA P-256) and interface protocols. Consider the ATSHA204A series for SHA-256 based applications, though it lacks ECC support. Verify that any substitute meets the same JIL security rating and temperature specifications to maintain system integrity.