74HCT540D
74HCT540D,652
74HCT540D,653
74HCT540DB
74HCT540DB,112
74HCT540DB,118
74HCT540DB-T
74HCT540D-Q100J
74HCT540D-T
74HCT540E
19129491934(手机优先微信同号)