I would recommend to use PIC 16F627 or 16F628 instead of 16F84. They are cheaper and better pin compatible replacements for 16F84. The only reason not to use the new 627/628 is a lack of awareness.
Thanks, but please don't upload data sheets that can be downloaded from hxxp://www.microchip.com for free. It only uses unnessasary bandwidt on elektroda. Just post the link instead!
Here's the link for PIC16F819 Device: hxxp://www.microchip.com/1010/pline/picmicro/category/embctrl/8kbytes/devices/16f819/index.htm
Direct download: hxxp://www.microchip.com/download/lit/pline/picmicro/families/16f8xx/39598c.pdf
I am a big fan of microchip and i agree with ME that why not use these good chips in our design, other news is that a microchip person told me that they are going to discontinue the pic 16f84a at the end of this year
lot of many good advantage against the f84a, 2k mem pwm , suart
ana compator,
altough instruction set look like a f84a insteed some diffrence