ATMEGA3250P 데이터 시트보기 (PDF) - Atmel Corporation

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ATMEGA3250P

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

Atmel Corporation 

2.3.12 RESET

2.3.13 XTAL1

2.3.14 XTAL2

2.3.15 AVCC

2.3.16 AREF

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

Characterizations” on page 308. Shorter pulses are not guaranteed to generate a reset.

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 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 A/D Converter.

8 ATmega325P/3250P

8023F–AVR–07/09

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