SN74HC594D
SN74HC594DE4
SN74HC594DG4
SN74HC594DR
SN74HC594DRE4
SN74HC594DRG4
SN74HC594DT
SN74HC594DTE4
SN74HC594DTG4
SN74HC594DW
19129493934(手机优先微信同号)0755-83266697