型号 / 厂家，封装，批号，备注，订购

HD74LS490P(DIP) / Hitachi Semiconductor,Datasheet,06/07+,BCD-to-Seven Segment 订购 PDF文档

HD74LS49FP(SMD) / Hitachi Semiconductor,Datasheet,07+,BCD-to-Seven Segment 订购 PDF文档

HD74LS368AG / Hitachi Semiconductor,Datasheet,07+,Inverting-Function B 订购 PDF文档

HD74LS51G / Hitachi Semiconductor,Datasheet,06/07+,2-2-3-3-Input AND-OR 订购 PDF文档

HD74LS54FP / ren,,09+/pb,★深圳香港均可交货★ 订购 PDF文档

HD74LS55G / Hitachi Semiconductor,Datasheet,07+,4-4-Input AND-OR-INV 订购 PDF文档

HD74LS640-1P / ren,,09+/pb,★深圳香港均可交货★ 订购 PDF文档

HD74LS373G / Hitachi Semiconductor,Datasheet,07+,Octal D-Type Latch - 订购 PDF文档

HD74LS641-1 / Hitachi Semiconductor,Datasheet,06/07+,Octal Bus Transceive 订购 PDF文档

HD74LS645-1 / Hitachi Semiconductor,Datasheet,06/07+,Octal Bus Transceive 订购 PDF文档