DS1743P-100IND+,IC RTC RAM Y2K 5V 100NS 34-PCM
DS1743P-70,IC RTC RAM Y2K 5V 70NS 34-PCM
DS1743P-70+,IC RTC RAM Y2K 5V 70NS 34-PCM
DS1743P-85+,IC RTC RAM Y2K 5V 85NS 34-PCM
DS1743P-85IND+,IC RTC RAM Y2K 5V 85NS 34-PCM
DS1743W-120,实时时钟
DS1743W-120 IND,实时时钟
DS1743W-120+,IC RTC RAM Y2K 3.3V 120NS 28EDIP