4.1.1 Designing a Board with the Standard Extension Header

The following sections contain information about standard extension sizes used by Atmel. The holes referred to as "test jig holes" are used by Atmel during manufacturing to align the board in a test fixture. These holes can safely be removed if they are not needed. These holes are not plated. The circles shown in the component placement drawings are rubber feet placed on the bottom side of the boards. Atmel uses 3M SJ-5076, which are 8mm in diameter and 2.8mm thick. Keep in mind that following these templates will ensure that the boards will physically fit on all Xplained Pro MCU kits.

Each template topic provides links to example products using the template if there are any.