ATMEGA8U2_1 ATMEL [ATMEL Corporation], ATMEGA8U2_1 Datasheet - Page 6

• Manufacturer Part Number: ATMEGA8U2_1
• Description: 8-bit Microcontroller with 8/16/32K Bytes of ISP Flash and USB Controller
• Manufacturer: ATMEL [ATMEL Corporation]

3. Resources
4. Code Examples
5. Data Retention
7799CS–AVR–12/09
A comprehensive set of development tools, application notes and datasheets are available for
download on http://www.atmel.com/avr.
This documentation contains simple code examples that briefly show how to use various parts of
the device. Be aware that not all C compiler vendors include bit definitions in the header files
and interrupt handling in C is compiler dependent. Please confirm with the C compiler documen-
tation for more details.
These code examples assume that the part specific header file is included before compilation.
For I/O registers located in extended I/O map, "IN", "OUT", "SBIS", "SBIC", "CBI", and "SBI"
instructions must be replaced with instructions that allow access to extended I/O. Typically
"LDS" and "STS" combined with "SBRS", "SBRC", "SBR", and "CBR".
Reliability Qualification results show that the projected data retention failure rate is much less
than 1 PPM over 20 years at 85°C or 100 years at 25°C.
ATmega8U2/16U2/32U2
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