ECC608-TFLXWPCS

Specialized ICS Overview

The Microchip Technology ECC608-TFLXWPC is a pre-provisioned CryptoAuthentication™ secure element designed for Wireless Power Consortium (WPC) Qi 1.3 authentication. It features an I2C interface with a default address of 0x38 and operates within a voltage range of 2.0V to 5.5V. The device supports P-256 Elliptic Curve Cryptography (ECC), ECDSA, ECDH, SHA-256, and HMAC algorithms. It includes hardware-accelerated cryptographic operations and a JIL High Rating for tamper resistance. Memory consists of 1,400 bytes of EEPROM divided into Configuration, Data, and OTP zones.

Specialized ICS Feature Summary

• Pre-provisioned for WPC Qi 1.3 compliance with dedicated slots for Manufacturing CA and Product Unit certificates.
• Supports TLS 1.2/1.3 authentication with integrated IoT private keys and compressed certificates.
• Features I/O Protection Key in Slot 6 to secure I2C communication against unauthorized access.
• Includes Secure Boot capabilities with customizable public keys defined at the time of manufacture.

Specialized ICS Applications

• Wireless power transmitters requiring WPC Qi 1.3 authentication for charging levels above 5W.
• Secure IoT connections utilizing TLS 1.2 and 1.3 protocols with cloud services.
• Secure boot implementations for firmware updates and system integrity verification.

Specialized ICS Procurement Notes

Verify that the specific ordering suffix matches the required package type (8-SOIC or 8-pad UDFN). Confirm that the pre-provisioned configuration aligns with the intended WPC or TLS application requirements, as the device configuration is fixed and cannot be modified by the customer after manufacturing.

Specialized ICS Selection Notes

Select this component when designing Qi 1.3 compliant wireless chargers needing certified authentication. Ensure the host processor supports I2C communication and can handle the device's voltage levels. Consider the fixed I2C address (0x38) and the one-time redefinable address feature during system architecture planning.

Specialized ICS Part Context

This part belongs to the ATECC608 family of generically-provisioned security devices. Unlike generic variants, the ECC608-TFLXWPC is specifically configured by Microchip to meet WPC standards. It serves as a specialized secure storage subsystem for power transmitters within the Qi ecosystem.

Specialized ICS Replacement Considerations

Generic ATECC608 devices are not direct replacements due to different default configurations and I2C addresses. Verify compatibility with existing Trust Platform Design Suite tools if migrating from other provisioned variants like ATECC608A.

Specialized ICS FAQ

Can the I2C address of the ECC608-TFLXWPC be changed?

Yes, the default I2C address of 0x38 can be rewritten once using the UpdateExtra command. After rewriting, the device must be powered down or put into Sleep mode for the change to take effect.

What is the purpose of Slot 6 in this device?

Slot 6 stores the I/O Protection Key, which is used to protect I2C communication. This key must be set up first if encryption of ECDH output or other sensitive data transfers is required.

Is the device configuration modifiable by the user?

No, the Configuration Zone is locked and cannot be directly written to by the customer. The slot access policies and device settings are predefined and fixed at the time of manufacturing.