【National Semiconductor】DP8422AV-25,IC CTRLR/DVR CMOS PROGRAM 84PLCC
【National Semiconductor】DP8422AVX-25,IC CTRLR/DVR CMOS PROGRAM 84PLCC
DP8570AV,实时时钟
DP8570AV/NOPB,实时时钟
DP8570AVX,实时时钟
DP8570AVX/NOPB,实时时钟
【National Semiconductor】DP8573AN,IC RTC ALARM 24DIP
DP8573AV,实时时钟
