SN74AS642N
SN74AS644N
SN74AS645DW
SN74AS645DWE4
SN74AS645DWG4
SN74AS645DWR
SN74AS645DWRE4
SN74AS645DWRG4
SN74AS645N
SN74AS645NE4
19129491934(手机优先微信同号)