SN74HC4538
SN74HC4538ADTR2G
SN74HC4538N
SN74HC4851
SN74HC4851D
SN74HC4851DE4
SN74HC4851DG4
SN74HC4851DGVR
SN74HC4851DGVRE4
SN74HC4851DGVRG4
19129491934(手机优先微信同号)