IC快速检索：
型号 / 厂家，封装，批号，备注，订购
SN74LS21P / MIT,,08/09+,特价 订购 PDF文档
SN74LS221DBR / ,,08/09+,全新原装深圳库存 订购 PDF文档
SN74LS221DBRE4 / Texas Instruments,Datasheet,06/07+,DUAL MONOSTABLE MULT 订购 PDF文档
SN74LS221DE4 / Texas Instruments,Datasheet,07+,DUAL MONOSTABLE MULT 订购 PDF文档
SN74LS221DR / TI,3.9m,08/09+,全新原装 订购 PDF文档
SN74LS221DR2 / MOTOROLA,,08/09+,全新原装深圳库存 订购 PDF文档
SN74LS221DRE4 / Texas Instruments,Datasheet,07+,DUAL MONOSTABLE MULT 订购 PDF文档
SN74LS221D-TI / TI,,08/09+,全新原装 订购 PDF文档