INA_P1INA_N2VTA3VTB4INB_P5INB_N6VREF7GND8ENA_N9ENB_N10GND11VCC12QB_N13QB_P14VCC15VCC16QA_N17QA_P18VCC19GND20SOUT21SDATA22SCLK23SLOAD24EP25