UM91230D
TONE/PULSE DIALER
UMC
UM91230DPDF下载
UM91230D
TONE/PULSE DIALER
UMC [UMC Corporation]
UM91230DPDF下载
UM91230DM
TONE/PULSE DIALER
UMC
UM91230DMPDF下载
UM91230DM
TONE/PULSE DIALER
UMC [UMC Corporation]
UM91230DMPDF下载
um91230c、um91230d是美国united micro公司生产的微电脑单片拨号集成电路,应用于通信设备,作拨号电路。该ic采用22脚双列直插式封装,其集成电路的弓脚功能及数据见表1-1所列。 表1-1 um91230c/d集成电路的5脚功能及数据 来源:university