SN74HCT164N
SN74HCT240AN
SN74HCT240ANE4
SN74HCT240ANS
SN74HCT240ANSE4
SN74HCT240ANSG4
SN74HCT240ANSR
SN74HCT240ANSRE4
SN74HCT240ANSRG4
SN74HCT240APW
19129491934(手机优先微信同号)