DS1743WP-150+,IC RTC RAM Y2K 3.3V 150NS 34-PCM
DS1744-70,IC RTC RAM Y2K 5V 70NS 28-EDIP
DS1744-70+,IC RTC RAM Y2K 5V 70NS 28-EDIP
DS1744-70IND,IC RTC RAM Y2K 5V 70NS 28-EDIP
DS1744-70IND/C01,实时时钟
DS1744-70IND+,IC RTC RAM Y2K 5V 70NS 28-EDIP
DS1744P-70,IC RTC RAM Y2K 5V 70NS 34-PCM
DS1744P-70+,IC RTC RAM Y2K 5V 70NS 34-PCM