ATMEGA165P View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
ATMEGA165P Datasheet PDF : 20 Pages
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ATmega165P
2.2.9 Port G (PG5:PG0)
2.2.10 RESET
Port G is a 6-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port G output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port G pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port G pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port G also serves the functions of various special features of the ATmega165P as listed on
page 79.
2.2.11 XTAL1
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 Table 26-4 on page
306. Shorter pulses are not guaranteed to generate a reset.
2.2.12 XTAL2
Input to the inverting Oscillator amplifier and input to the internal clock operating circuit.
2.2.13 AVCC
Output from the inverting Oscillator amplifier.
2.2.14 AREF
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.
3. Resources
This is the analog reference pin for the A/D Converter.
A comprehensive set of development tools, application notes and datasheets are available for
download on http://www.atmel.com/avr.
6
8019IS–AVR–08/07
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