SN74HC574N
SN74HC574NE4
SN74HC574NS
SN74HC574NSE4
SN74HC574NSG4
SN74HC574NSR
SN74HC574NSRG4
SN74HC574PW
SN74HC574PWE4
SN74HC574PWG4
19129491934(手机优先微信同号)