Happy New Year to ewerybody !!!

Please describe me what means : PIC16C84-04/P. What is 04 ????
Is it operating speed ???
I'am using this chips with 8Mhz X-tals, they works perfectly.
In HS mode of course.
I don't try it in 10Mhz.
I am aproved more than 50 chips.

        Best regards,
                Saras.
saras@kaunas.aiva.lt