型号 / 厂家，封装，批号，备注，订购

UM9552SR / Microsemi Corporation,Datasheet,06/07+,DIODE PIN ATTENUATOR 订购 PDF文档

UM9602L/A / ,,08/09+, 订购 PDF文档

UM9604 / Unitrode Semiconductor,Datasheet,06/07+,International Semico 订购 PDF文档

UM9606 / Unitrode Semiconductor,Datasheet,06/07+,International Semico 订购 PDF文档

UM9607 / Unitrode Semiconductor,Datasheet,07+,International Semico 订购 PDF文档

UM91270AM / UMC Corporation,Datasheet,07+,20 MEMORY TONE/PULSE 订购 PDF文档

UM91270BM / UMC Corporation,Datasheet,06/07+,20 MEMORY TONE/PULSE 订购 PDF文档

UM91270M / UMC Corporation,Datasheet,06/07+,20 MEMORY TONE/PULSE 订购 PDF文档

UM91272 / Unicorn Microelectronics,Datasheet,06/07+,20 Memory Tone-Pulse 订购 PDF文档

UM91310 / United Microelectronics,Datasheet,07+,Tone/ Pulse Dialer 订购 PDF文档