8

8011MS–AVR–08/09

ATmega164P/324P/644P

3.

About

3.1

Resources

A comprehensive set of development tools, application notes and datasheetsare available for

download on http://www.atmel.com/avr.

3.2

About Code Examples

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.

The 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" instruc-

tions must be replaced with instructions that allow access to extended I/O. Typically "LDS" and

"STS" combined with "SBRS", "SBRC", "SBR", and "CBR".

3.3

Data Retention

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.