atmega162v ATMEL Corporation, atmega162v Datasheet - Page 6

• Manufacturer Part Number: atmega162v
• Description: Atmega162 8-bit Avr Microcontroller With 16k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

Port D (PD7..PD0)
Port E(PE2..PE0)
RESET
XTAL1
XTAL2
6
ATmega162/V
Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port D output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port D pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port D pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port D also serves the functions of various special features of the ATmega162 as listed on
78.
Port E is an 3-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port E output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port E pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port E pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port E also serves the functions of various special features of the ATmega162 as listed on
81.
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
48. 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.
Table 18 on page
2513JS–AVR–08/07
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