SN74LX244
SN74LX244APW
SN74LX244B
SN74LX245PW
SN74LX543PW
SN74LXH125DB
SN74LXH241PW
SN74S00
SN74S00D
SN74S00DE4
19129911934(手机优先微信同号)
19129491934(手机优先微信同号)