SN74LS42474876139N芯片

SN74LS42芯片DIP-16直插

SN74LS4247487683

DM74LS112AN DM74LS112AM DM74LS109AN DM74LS109AJ DM74LS107AN

全新SN74LS109ADR正品IC FF JK TYPE DUAL 1BIT 16SOIC

全新SN74LS109AD正品IC FF JK TYPE DUAL 1BIT 16SOIC

全新SN74LS109AN正品IC FF JK TYPE DUAL 1BIT 16DIP