Le 20/12/2011



SRAM_GA144                                                  





D'apres la documentation de GreenArrays, les schema voici un lien pour trouver les composants  :




composants , recherche, liens :
        GA144,  SRAM ,  Régulateur Tension ....






Creation du PCB  , avec le logiciel Eagle :



Fichier  31/10/2011   :   ga144.lbr

   Librairie Eagle  GA144    le chip GA144, SRAM, regulateur.






Logiciels :




Les fichiers Gerber   , ViewPlot  







adaptateur QFN --> dip   




DIPV2chip_support






schema , pcb  (Eagle + Gerber ) :  

GA144 + SRAM (ISI61WV102416ALL) +  SPI FLASH (SST25WF080) + Regulateur 1.8V







ga144ga144_2ga144_6





Documentation  GA144 :

6.1 Package Description

This chip is available in a plastic-molded Quad Flat No-lead (QFN) package measuring 10x10 mm and with a total of 88
pins (22 per side) at 0.4mm pitch. The exposed central pad (DAP) on the bottom of the package is also used as the
single grounding point for the entire chip. Dimensions, in mm, are as follow:



GA144_chip
Bottom View





Ga144_top

TOP View


ga144_side

Side View






chipchip1chip2chip3