Re: Microcontrollers FLASH vs ROM


"Andros" <androsd4@xxxxxxxxx> schreef in bericht
news:1139928572.927616.247090@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi there, first excuseme for my english...

Time ago I have had a question about microcontrollers with flash memory
and rom memory. Which are the difference between them?, apart of the
feature of flash memory to be reprogramed, there is any difference in
cost or any else fact?, which are the advantage of ROM
microcontrollers?, for examle the PIC18F252 and PIC18C252. For desing
stuff is clear that FLASH micros are better, but in production?, which
are better?

Thanks!


According to Microchip, there is no best. It's just a matter of money. Flash
is the most expensive and the most flexible. Usefull for development and
designs that may need to keep the possibility for changing or upgrading.
OTPs are less expensive but still requires programing. Usefull for small and
medium quantities. ROM is the cheapest but only for very large volumes.

petrus bitbyter


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