型号:HD74LS2420
厂商:HITACHI
批号:19+
封装:DIP
HD74LS242P
HD74LS243P
HD74LS244FP
HD74LS244FPEL
HD74LS244FPEL-E
HD74LS244P
HD74LS244RP
HD74LS244RPEL
HD74LS244RPEL-E
HD74LS245FP
HD74LS245FPEL
HD74LS245FPEL-E
HD74LS245P
HD74LS245PSN74LS245N
HD74LS245RPEL-E
HD74LS247P
HD74LS248P
HD74LS258FPEL
HD74LS258P
HD74LS259P