| B | 02/2018 |
- Explanations
in the Digital Supply section were improved.
- Obsolete
section on Noise Implications was removed.
|
| A | 08/2017 |
- Chapter
“Unused XTAL Pins” is added.
- A note for
the Example Layout has been added.
- New document
template. Microchip DS00002519A replaces Atmel 2521S.
|
| 2521R | 09/2016 |
- The filename
and the document number in part of this revision history
have been corrected.
- Trademark
corrections.
- Some minor
corrections in the text.
|
| 2521Q | 06/2016 |
- General
improvement of descriptions.
- Added example
layout for ATmega324PB device.
|
| 2521P | 10/2015 | Updated the following sections:- About Crystals and Ceramic Resonators
- Recommended Capacitor Values
|
| 2521O | 09/2015 | Corrected the figure Example Layout. |
| 2521N | 06/2015 | Added Noise Implications. |
| 2521M | 09/2014 | Fixed some typos in External RESET Switch. |
| 2521L | 07/2013 |
- Updated Figure 4-5.
- General
improvements in regards of descriptions.
|
