Hi WF (WF AUTOMA=?iso-8859-1?Q?=C7=C3O ?=), in <33D68C67.11C0@ambiente.com.br>
 on Jul 23 you wrote:

>         I'm using a PIC16f84 at 4mhz, and would like to know if is
> possible to me to create a frequency of 2mhz at some output pin!

There is no way to achive this in-spec.  You can RC-clock an 10MHz part at
8 MHz and read 2MHz at CLK-OUT.  This is out of spec, however, and not very
stable with voltage and temperature.

You should divide that 4MHz clock by external components!