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ATMEGA3290PV-10AU Datasheet(PDF) 8 Page - ATMEL Corporation |
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ATMEGA3290PV-10AU Datasheet(HTML) 8 Page - ATMEL Corporation |
8 / 25 page 8 8021AS–AVR–12/06 ATmega329P/3290P 2.3.12 RESET Reset input. A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running. The minimum pulse length is given in ”System and Reset Characteristics” on page 332. Shorter pulses are not guaranteed to generate a reset. 2.3.13 XTAL1 Input to the inverting Oscillator amplifier and input to the internal clock operating circuit. 2.3.14 XTAL2 Output from the inverting Oscillator amplifier. 2.3.15 AVCC AVCC is the supply voltage pin for Port F and the A/D Converter. It should be externally con- nected to V CC, even if the ADC is not used. If the ADC is used, it should be connected to VCC through a low-pass filter. 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 Fig- ure 21-2. This capacitor acts as a reservoir for LCD power (V LCD). A large capacitance reduces ripple on V LCD but increases the time until VLCD reaches its target value. |
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