集成电路（IC）
传感器、变送器
PT-3621A LF
PT3603C1SAG8P1
PL2303HXD
PT3921E2OBG7P1
PL2303GC
PL2303SA LF
PL2586
PT3661H1OAG7P1
MA8621
PT3612H1SAG8P1
