VM1VM2AOUT23AISEN4AOUT15ABDECAY6CP17CP28VCP9PGND10PGND11PGND12PGND13PGND14PGND15V3P316ABVREF17CDVREF18CDDECAY19DOUT220DISEN21DOUT122VM23VM24COUT225CISEN26COUT127CDRESETN28SDUSM129SDENBLN30CDDIR31CDUSM032CDSTEP33PGND34PGND35PGND36PGND37PGND38PGND39ABRESETN40ABUSM141ABENBLN42ABDIR43ABUSM044ABSTEP45BOUT246BISEN47BOUT148PAD49