What is a suitable substitute for a 16F84?

Started by oi2all September 24, 2004
I have some books on the way to learn PIC programming.
I think that the demos in the books are all based on the
16F84. This part seems to be a bit long in the tooth
and also expensive compared to more powerful chips.

Would the 16F628A be a good substitute for working through
the books??? or would some other chip be a better choice.
When I run a small program on the simulator the output for
the 16F628A looks pretty much the same as the 16F84.

Glitchbusters does not even sell the old 16F84 and microchip
sells it for about 7$ each :-(
The 16F628 is generally used these days instead of the 16F84. There are a
few differences which might cause some problems, but they are quite minor.

Leon
> Glitchbusters does not even sell the old 16F84 and microchip
> sells it for about 7$ each :-(

E4.00 ($ Mhz version): http://www.voti.nl/shop/p/PIC-16F84A-4-DIP.html

The 16F628A is closest to the 16F84A (same number of pins), but the
16F630 is a smaller, cheaper and more simple chip (much smaller
datasheet).

Wouter van Ooijen

-- -------
Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu
Have you check out the 16F84A?

It might be cheaper (slightly)

My advice is buy one or two that go with the book you are reading then when you know what you are doing get the PIC you want and grab its datasheet and you should be fine.

Nigel
Futurlec in the USA have the 4MHz part for US$3.50 each
[www.futurlec.com](http://www.futurlec.com)
EDTP are selling 20 16C84 at a US$1 each
http://www.edtp.com/
the 16F628 is similar , with very ligth prgram mods you will be able
to run you 16F84 asm's .