38mte tssop-28lm4861m hwd4861m sop-8lm4863 hwd4863d dip-16lm4863 hwd4863n nsop-16lm4863 hwd2163iae wsop-16lm4863iup hwd2163iup tssop-20不带散热片lm4863mte hwd4863mte tssop-20带散热片lm4871m hwd2171m sop-8lm4880m hwd2180m sop-8lm4882m hwd4882 sop-8lm4890mm hwd2190mm msop-8lm4890itl hwd2190itl smd9二、替代美信的型号max232cse hwd232cse sop-16max232cpe hwd232cpe dip-16max202cse hwd202cse sop-16max202cpe hwd202cpe dip-16max809s hwd809s sot23-3 2.93vmax809r