ATMEGA644PV(2007) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA644PV
(Rev.:2007)

8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash

Atmel Corporation 

2.3.9 XTAL2

2.3.10 AVCC

2.3.11 AREF

ATmega164P/324P/644P

Output from the inverting Oscillator amplifier.

AVCC is the supply voltage pin for Port F and the Analog-to-digital Converter. It should be exter-

nally connected to VCC, even if the ADC is not used. If the ADC is used, it should be connected

to VCC through a low-pass filter.

This is the analog reference pin for the Analog-to-digital Converter.

3. Resources

A comprehensive set of development tools, application notes and datasheetsare available for

download on http://www.atmel.com/avr.

7

8011DS–AVR–02/07

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