ATMEGA8U2-AUR Atmel, ATMEGA8U2-AUR Datasheet - Page 300
ATMEGA8U2-AUR
Manufacturer Part Number
ATMEGA8U2-AUR
Description
MCU AVR 8K FLASH 16MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8U2-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP, 32-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
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32.3.2
7799D–AVR–11/10
rev. A and rev B
• Full Swing oscillator
1. Full Swing oscillator
The maximum frequency for the Full Swing Crystal Oscillator is 8MHz. For Crystal frequen-
cies > 8MHz the Full Swing Crystal Oscillator is not guaranteed to operate correctly.
Problem fix/Workaround
If a Crystal with frequency > 8MHz is used, the Low Power Crystal Oscillator option should
be used instead. See table 8-1 for an overview of the Device Clocking Options. Note that the
Low Power Crystal Oscillator will not provide full rail-to-rail swing on the XTAL2 pin. If sys-
tem clock output is needed to drive other clock inputs while running from the Low Power
Crystal Oscillator, the system clock can be output on PORTC7 by programming the CKOUT
fuse.
ATmega8U2/16U2/32U2
300
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