This pin also used as serial interface clock line.ĪTmega328P is a very advance and feature rich microcontroller. This pin can also be used as serial interface connection for data.Īnalog input digital value channel 5. This pin is act as a master clock output and slave clock input for SPI.Īnalog Reference voltage for ADC (Analog to Digital Converter)Īnalog input digital value channel 4. This pin is act as a master clock input and slave clock output. This pin is used as a master data output and slave data input for SPI. Pin 11 is used for external counter source Timer1 This pin should also be connected to another pin of the crystal oscillator to provide external clock pulse to the chip This pin should be connected to one pin of the crystal oscillator to provide external clock pulse to the chip Pin 6 is used for external counter source Timer0 When this reset pin goes low the microcontroller & its program gets reset.
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