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ATmega169A/PA/329A/PA/649A/P/3290A/PA/6490A/P [SUMMARY]

8284ES–AVR–02/2013

2.3.15

AVCC

AVCC is the supply voltage pin for Port F and the A/D Converter. It should be externally connected to V

the ADC is not used. If the ADC is used, it should be connected to V

2.3.16

AREF

This is the analog reference pin for the A/D Converter.

2.3.17

LCDCAP

An external capacitor (typical > 470 nF) must be connected to the LCDCAP pin as shown in Figure 24-2, if the LCD

module is enabled and configured to use internal power. This capacitor acts as a reservoir for LCD power (V

large capacitance reduces ripple on V