user10408: I have one Arduino uno, and one atmega8a 1337 ic. Can i replace the Arduino uno ic with 1337 to program the 1337 one?

user4143: If you have a bootloader installed on the 8A then yes, you can.  The two chips are pin and electrically compatible.

10408: <p>I have one Arduino uno, and one atmega8a 1337 ic. Can i replace the Arduino uno ic with 1337 to program the 1337 one?</p>
 4143: <p>If you have a bootloader installed on the 8A then yes, you can.  The two chips are pin and electrically compatible.</p>
