SN74LS245D
SN74LS245DB
SN74LS245DBE4
SN74LS245DBG4
SN74LS245DBR
SN74LS245DBRE4
SN74LS245DBRG4
SN74LS245DBRTI
SN74LS245DR
SN74LS245DW
19129491934(手机优先微信同号)