型号 / 厂家，封装，批号，备注，订购

54F191/BFA / Philips Semiconductors,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

54F191DMQB(SMD) / National Semiconductor,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

54F191L1M / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

54F191LM / National Semiconductor,Datasheet,07+,Up/Down Binary 订购 PDF文档

54F192 / National Semiconductor,Datasheet,07+,Up-Down Decade 订购 PDF文档

54F192FMQB / Various,Datasheet,07+,BCD-Output Decade Up 订购 PDF文档

54F192LM / National Semiconductor,Datasheet,07+,Up/Down Decade 订购 PDF文档

54F193/B2A / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

54F193/BFA / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

54F193FMQB / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档