5.1 Microchip ATECC608B

The ATECC608C is designed to provide enhanced security capabilities over that of the ATECC608B while maintaining backwards compatibility. The following details the changes and enhancements to the device. No configuration bit fields, voltage ranges, temperature ranges, package pinouts or power specifications have changed. Configurations defined for the ATECC608C will be functionally identical with the ATECC608B device.

Corrections, Enhancements

The following items were corrected or enhanced in the ATECC608C device:
  • Low Temperature Lock-up issue after power-up state was corrected.
  • tDVC_INIT time was added to the data sheet. It is recommended that communications on the I2C bus not occur until after this time has passed.
  • Updated timing diagrams were added to the AC Characteristics. (Figure 3-1 and Figure 3-2)
  • The Read command execution time increased from 2.0 ms to 2.5 ms max.