Hi OAk,
What do you want the PIC to do beside be a clock? Why you choose a specific PIC could be because you just happen to have one on hand, you've done other projects with this specific PIC because that's what you learned on. Most of the reading I did early on was based on the 16F84. It's pretty much a dead horse now being replaced by newer units with more memory and lower cost. Reading through these forums you will find people using 16F628A's, 16F877A, 18F452 or 18F2450's. It is up to you what you want to use based on your knowledge and project needs.
If someone asks you why did you use a 16F instead of an 18F you could just tell them you ran your finger over the page with your eyes closed and when you stopped moving your finger, it was on a 16F part number.
What kind of clock are you planning on building? Will you be using 7 segment displays or an LCD display? Will you be using a separate clock chip or will you be using the PIC to generate the clocking pulses and registers to keep track of the time? I really thought I covered this in my first reply.
Take some time and read through our forum. Get some ideas if you don't have any formulated yet.
HTH,
BobK
PS. You weren't on this forum last year as ENG444 were you?
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