5.2 Microchip ATECC608A

The ATECC608B is designed to provide an enhanced security profile over that of the ATECC608A while maintaining backwards compatibility. The following details the changes and enhancements to the device. No configuration bit fields have changed. Configurations defined for the ATECC608A will be functionally identical with the ATECC608B device.

Corrections, Enhancements

The following items have been corrected or enhanced in the ATECC608B device:
  • Two temperature ranges are now available:
    • Standard Industrial Temperature Range: -40℃ to +85℃
    • Standard Industrial Temperature Range: -40℃ to +100℃
  • Operating at a low I2C Frequency with multiple devices on the bus will no longer create a bus contention issue.
  • Modifications to Command Timings for Verify, SecureBoot, Lock and Read commands.
  • New Packaging Options: 3-Lead Contact Package and WLCSP for qualified customers. (Contact Microchip Sales for the WLCSP Option.)