SN74LX543PW
SN74LXH125DB
SN74LXH241PW
SN74S00
SN74S00D
SN74S00DE4
SN74S00DG4
SN74S00DR
SN74S00DRE4
SN74S00DRG4
19129491934(手机优先微信同号)