Add LGA-8_8x6mm_P1.27mm
This MR add LGA-8_8x6mm_P1.27mm, a form of LGA used by some Chinese chip manufacturers, in particular for SD NAND memories.
I chose not to prefix the footprint with the manufacturer's name (XTX) because I found another documentation from which appears to be another constructor (Zetta) with the same footprint.
XTX: https://datasheet.lcsc.com/lcsc/2005251034_XTX-XTSD01GLGEAG_C558837.pdf
Zetta: https://datasheet.lcsc.com/lcsc/2303241700_Zetta-ZDSD64GLGEAG-R_C5277948.pdf
Dimension (XTX, page 6):
Dimension (Zetta, page 16, SLC dimension):
PRs integrating XTX and Zetta symbols in SLC will arrive shortly. Update: Apparently, Zetta does not produce SLC chips. Should I continue without the prefix?
Edited by Corentin Poupry