Dear DeWayne Gibson
Hope you are doing great, I believe that despite the HF tags supports the ISO 15693 the frequency might be better for some appliances,If NXP decides to discontinue the product due to unforeseen circumstances or vital business needs, the discontinuation of the product will be announced and performed according to our “EOL/DOD” process providing also a “last time buy” option to our customers. please contact your DBM for this kind of questions since we are not aware about any deadline for this product.
Have a great day !
BR
Jonathan