Add DRQFN packages for some ATmega MCUs
Created by: fauxpark
Here are the Dual Row QFN symbols for the ATmega164A/PA, 324A/PA, 169A/PA, 169P, and xmega128B3.
Datasheets: http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8272-8-bit-AVR-microcontroller-ATmega164A_PA-324A_PA-644A_PA-1284_P_datasheet.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/atmel-8284-8-bit-avr-microcontroller-atmega169a_pa_329a_pa_3290a_pa_649a_p_6490a_p_datasheet.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/doc8018.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8074-8-and-16-bit-AVR-Microcontroller-XMEGA-B-ATxmega64B3-ATxmega128B3_Datasheet.pdf
Footprint PR was https://github.com/KiCad/kicad-footprints/pull/990
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Provide a URL to a datasheet for the symbol(s) you are contributing -
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Ensure that the associated footprints match the official footprint library -
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