Dec 21, 2012 #1 D Don_dody Full Member level 1 Joined Nov 4, 2012 Messages 96 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Location Indonesia Visit site Activity points 1,921 What is the different between using the AVR internal 1MHz RC and using external crystal i.e 12MHz ? If the MCU is completed already with internal RC, why should we use external crystal ?
What is the different between using the AVR internal 1MHz RC and using external crystal i.e 12MHz ? If the MCU is completed already with internal RC, why should we use external crystal ?
Dec 21, 2012 #2 Jestin_cubetech Advanced Member level 1 Joined Jun 24, 2012 Messages 499 Helped 76 Reputation 152 Reaction score 73 Trophy points 1,328 Visit site Activity points 3,697 external crystals are more accurate.
Dec 21, 2012 #3 alexan_e Administrator Joined Mar 16, 2008 Messages 11,888 Helped 2,021 Reputation 4,158 Reaction score 2,031 Trophy points 1,393 Location Greece alexan.edaboard.eu Activity points 64,371 Yes accuracy and higher clock frequency if you need it