SAMD21 : Atmel vs Microchip

Hi,

Noob question : is there a difference between the SAMD21 from Atmel and Microchip ? Do they have the same pinout ?

Cheers

Why don't you check the data sheets?

Microchip bought Atmel, there is no difference now.
https://www.microchip.com/sitesearch/search/All/samd21