GND1HA12HA23BMA24BMA15LA16LA27SRA85VOUT9SDO10SDI11SCK12GND13CSN14ENN15CLK16SRB17LB218LB119BMB120BMB221HB222HB123VHS24VS25TST_ANA26SG_TST27GNDP28VCC_IO29DIR30STEP31TST_MODE32EP33