PIC18F2420/2520/4420/4520 Rev. A1 Silicon Errata Sheet

The PIC18F2420/2520/4420/4520 Rev. A1 parts you have received conform functionally to the Device Data Sheet (DS39631), except for the anomalies described below. Any Data Sheet Clarification issues related to the PIC18F2420/2520/4420/4520 will be reported in a separate Data Sheet errata. Please check the Microchip web site for any existing issues.
All the problems listed here will be addressed in future revisions of the PIC18F2420/2520/4420/4520 silicon.