Nvcm4v2.1 ((link)) Info

The specific features of v2.1 target three major industries:

This sounds obvious, but some engineers attempt to store run-time counters in NVCM. OTP cells have a limited program endurance (spec is typically 1 program cycle per cell). Never write to the same OTP address twice. For counters, use embedded SRAM backed by a battery or a separate flash partition. nvcm4v2.1