What do these abbreviations in the name of Arduinos (or maybe processors?) mean? I remember '16AU' and 'P-20', but there are more out there...

What means '16AU' and 'P-20PU'

CrossRoads November 5, 2010, 5:37am 4

Easy to find - Section 32 of the ATmega48PA/88PA/168PA/328P datasheet, page 430.

I believe P = plastic package

Topic		Replies	Views
What does the -PU, 16PU means ? 3rd Party Boards	9	8912	May 6, 2021
Atmega 168, 168P, 168PA...? Development	6	9684	May 6, 2021
ATMEGA8-16PU works with arduino Frequently-Asked Questions	2	1311	May 6, 2021
Mega168 flavours - what's the difference? Frequently-Asked Questions	5	1982	May 6, 2021
Whats the difference between ATMEGA168A-PU.. Bar Sport	8	5747	May 6, 2021