型号 / 厂家，封装，批号，备注，订购

M74HC190TTR / ST Microelectronics,Datasheet,06/07+,4 BIT SYNCHRONOUS UP 订购 PDF文档

M74HC191C1R / ST Microelectronics,Datasheet,06/07+,4 BIT SYNCHRONOUS UP 订购 PDF文档

M74HC190P / Various,Datasheet,06/07+,BCD-Output Decade Up 订购 PDF文档

M74HC191DP / Various,Datasheet,06/07+,4-Bit Binary Up-Down 订购 PDF文档

M74HC191F1R / ST Microelectronics,Datasheet,06/07+,4 BIT SYNCHRONOUS UP 订购 PDF文档

M74HC191B1N / ST Microelectronics,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

M74HC191C1 / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

M74HC191FP / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

M74HC191F1 / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档

M74HC191P / Various,Datasheet,07+,4-Bit Binary Up-Down 订购 PDF文档