ATMEGA329-16MI Atmel, ATMEGA329-16MI Datasheet - Page 6
![IC AVR MCU 32K 16MHZ 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA329-16MI
Manufacturer Part Number
ATMEGA329-16MI
Description
IC AVR MCU 32K 16MHZ 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA329-16MI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
2.2
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2552KS–AVR–04/11
Comparison between ATmega329, ATmega3290, ATmega649 and ATmega6490
Pin Descriptions
V
GND
Port A (PA7..PA0)
Port B (PB7..PB0)
CC
The ATmega329, ATmega3290, ATmega649, and ATmega6490 differs only in memory sizes,
pin count and pinout.
devices.
Table 2-1.
The following section describes the I/O-pin special functions.
Digital supply voltage.
Ground.
Port A is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port A output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port A pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port A pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port A also serves the functions of various special features of the ATmega329/3290/649/6490
as listed on
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port B has better driving capabilities than the other ports.
Port B also serves the functions of various special features of the ATmega329/3290/649/6490
as listed on
Device
ATmega329
ATmega3290
ATmega649
ATmega6490
page
page
Configuration Summary
Flash
32Kbytes
32Kbytes
64Kbytes
64Kbytes
67.
68.
Table 2-1 on page 6
EEPROM
1Kbytes
1K bytes
2Kbytes
2Kbytes
RAM
2Kbytes
2Kbytes
4Kbytes
4Kbytes
summarizes the different configurations for the four
ATmega329/3290/649/6490
LCD
Segments
4 x 25
4 x 40
4 x 25
4 x 40
General Purpose
I/O Pins
54
69
54
69
6