SN74AS243N
SN74AS244ADB
SN74AS244ADBE4
SN74AS244ADBG4
SN74AS244ADW
SN74AS244ADWE4
SN74AS244ADWG4
SN74AS244ADWR
SN74AS244ADWRE4
SN74AS244ADWRG4
19129491934(手机优先微信同号)