PIC18FXXX what one to use?

[BobP]

Hi all,

I am confused by the seemingly endless PIC18 parts now available.
Is there a handful of these parts that are in common use similar to the PIC 16F877, 876, etc. Or if not how does one select the 'best' chip for the job?

Thanks,
Bob

[skimask]

Hi all,

I am confused by the seemingly endless PIC18 parts now available.
Is there a handful of these parts that are in common use similar to the PIC 16F877, 876, etc. Or if not how does one select the 'best' chip for the job?

Thanks,
Bob



My 2 cents...
40 pin types:
PIC18F4620: drop in replacement for the 18F452, twice as much memory, a few more options, etc. I use it in everything these days. Basically an updated/better 16F877 (which used to be really popular and still is).

28 pin types:
PIC18F2620: same reasons as above

18 pin types:
PIC18F1320: same reasons as above...

Bigger than 40 pin- PIC18F8722, like a '4620, but 80 pin TQFP package.

Smaller than 18 pin - PIC12F675 or PIC10F222. A bit different than the above, but the same theories still apply.

See the common thread? Almost all of these are in the same 'sub-family' of PICs. If you've worked with one, you've worked with them all.

Past that, it's all about personal preference and whatever you can get your hands on cheap.
JDG

[BobP]

Thanks Skimask,

Have had a look at the datasheets and they have everything I would need.

Thanks again for the pointers I found I was getting lost in the vast choice Microchip now have.

Regards,
Bob