ATMEGA16U4-AU(2016) データシートの表示（PDF） - Atmel Corporation

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ATMEGA16U4-AU
(Rev.:2016)

8-bit Microcontroller with 16/32K bytes of ISP Flash and USB Controller

Atmel Corporation 

3. About

3.1 Disclaimer

Typical values contained in this datasheet are based on simulations and characterization of other AVR

microcontrollers manufactured on the same process technology. Min. and Max. values will be available after the

device is characterized.

3.2 Resources

A comprehensive set of development tools, application notes and datasheets are available for download on

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

3.3 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. Confirm with the C compiler documentation 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".

3.4 Data Retention

Reliability Qualification results show that the projected data retention failure rate is much less than 1PPM over

20 years at 85°C or 100 years at 25°C.

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ATmega16U4/32U4 [DATASHEET]

Atmel-7766J-USB-ATmega16U4/32U4-Datasheet_04/2016

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