MC74HC4852AN
MC74HC4852ANG
MC74HC51DR2
MC74HC51N
MC74HC521N
MC74HC534N
MC74HC540ADTR2
MC74HC540ADTR2G
MC74HC540ADW
MC74HC540ADWG
19129911934(手机优先微信同号)
19129491934(手机优先微信同号)