KSZ8041 Datasheet, PDF (3/4 Pages) Microchip Technology – KSZ8041 Silicon Errata and Data Sheet Clarification

KSZ8041
Module 2: Pin Strapping failures due to 1.8V core power slow ramp-up
DESCRIPTION
A small percentage (<1%) of devices can potentially encounter pin strapping failures with fast 3.3V supply rise times
(<150us) or slow core rail rise times, due to a large bulk storage capacitor value (10uF or greater) for the 1.8V core.
END USER IMPLICATIONS
When this errata occurs, pin strap values may not be correctly latched.
Work around
Reduce the 1.8V core bulk storage capacitor from 10uF to 1.0uF and ensure the 3.3V supply rise time is 250us
or greater.
PLAN
This errata is not planned to be corrected in a future revision.
 2016 Microchip Technology Inc.
DS80000700A-page 3