Datasheet

7
8024A–AVR–04/08
ATmega8HVA/16HVA
2.1 Comparison Between ATmega8HVA and ATmega16HVA
The ATmega8HVA and ATmega16HVA differ only in memory size and interrupt vector size.
Table 2-1 summarizes the different configuration for the two devices.
3. Disclaimer
All Min, Typ and Max values contained in this datasheet are preliminary estimates based on sim-
ulations and characterization of other AVR microcontrollers manufactured on the same process
technology. Final values will be available after the device is characterized.
4. Resources
A comprehensive set of development tools, application notes and datasheets are available for
download on http://www.atmel.com/avr.
Note: 1.
5. 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.
6. About Code Examples
This documentation contains simple code examples that briefly show how to use various parts of
the device. These code examples assume that the part specific header file is included before
compilation. 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.
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”.
Table 2-1. Configuration summary
Device Flash Interrupt vector size
ATmega8HVA 8K 1 Word
ATmega16HVA 16K 2 Word