型号 / 厂家，封装，批号，备注，订购

M74HCT574B / ,,,原装现货 订购 PDF文档

M74HCT574B1R / FAIRCHILD,,02+,原装现货 订购 PDF文档

M74HCT640RM13TR / ,,06+,欢迎查询采购 订购 PDF文档

M74HCT646B1 / STM,,05+,原装特价 订购 PDF文档

M74HCT646M1 / ,,07+,原装货欢迎来电 订购 PDF文档

M74HCT652B1 / FAIRCHILD,,02+,原装现货 订购 PDF文档

M74HCT652B1R / ST,DIP,01+,全新原装，深圳/香港现货 订购 PDF文档

M74HCT652M1R / ST,DIP,01+,全新原装，深圳/香港现货 订购 PDF文档

M74HCT688B1 / STM,,05+,原装特价 订购 PDF文档

M74HCT688RM13TR / ST,SMD,04+,原装010-66001623 订购 PDF文档