ATMEGA3290PV ATMEL [ATMEL Corporation], ATMEGA3290PV Datasheet - Page 8

• Manufacturer Part Number: ATMEGA3290PV
• Description: 8-bit Microcontroller with 32K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

2.3.12
2.3.13
2.3.14
2.3.15
2.3.16
2.3.17
8
ATmega329P/3290P
RESET
XTAL1
XTAL2
AVCC
AREF
LCDCAP
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
Characteristics” on page
Input to the inverting Oscillator amplifier and input to the internal clock operating circuit.
Output from the inverting Oscillator amplifier.
AVCC is the supply voltage pin for Port F and the A/D Converter. It should be externally con-
nected to V
through a low-pass filter.
This is the analog reference pin for the A/D Converter.
An external capacitor (typical > 470 nF) must be connected to the LCDCAP pin as shown in
ure
ripple on V
21-2. This capacitor acts as a reservoir for LCD power (V
LCD
CC
, even if the ADC is not used. If the ADC is used, it should be connected to V
but increases the time until V
332. Shorter pulses are not guaranteed to generate a reset.
LCD
reaches its target value.
LCD
). A large capacitance reduces
”System and Reset
8021AS–AVR–12/06
Fig-
CC