Migrating from the ATECC508A to the ATECC608B

PublishTime：2021-06-17

The ATECC608B is a security enhanced version of the ATECC608A and a security enhanced and feature upgrade to the ATECC508A. All these devices are products in the Microchip CryptoAuthentication™ family of high-security cryptographic devices. The security changes implemented in the device are largely behind the scenes and are not directly observable during normal operation.
For new designs, it is recommended that users start directly with the ATECC608B. For designs that are going through an upgrade or a revision, it is recommended that part of the upgrade include the ATECC608B. For other designs, it is recommended that users do an overall security assessment and determine if they need to migrate to the ATECC608B.
The ATECC608B continues the line of security products developed as part of the Microchip CryptoAuthentication family of high-security cryptographic devices. These devices combine world-class hardware-based key storage with hardware cryptographic accelerators to implement various cryptographic functions and algorithms. All applications and use cases previously supported by the ATECC508A are also supported by the ATECC608B.
The ATECC608B device is compatible with the ATECC508A device and with some limited exceptions, allows for easy migration. If the ATECC608B is properly configured, the software written for the ATECC508A will work with the ATECC608B. For more information, see Section 4. Migration from the ATECC508A to the ATECC608B. This application note lists the features, commands and configuration differences between the ATECC608B and the ATECC508A. It provides high-level details about the differences. For detailed information on the commands and configurations, compare the ATECC608B and the ATECC508A data sheets.

Brand of Product：	Microchip
Part#：	ATECC508A 、 ATECC608B More Part#
Product Category：	More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	SOIC;UDFN;RBH
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2021/05/27
Version Number：
Data Encoding：	AN3539
Data Size：	211 KB

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