DS1284,IC TIMEKEEPER WATCHDOG 28-DIP
DS1284+,IC TIMEKEEPER WATCHDOG 28-DIP
DS1284N,实时时钟
DS1284Q,IC TIMEKEEPER WATCHDOG 28-PLCC
DS1284Q/T&R,IC RTC CLK/CALENDAR PAR 28PLCC
DS1284Q/T&R,实时时钟
DS1284Q/T&R/C03,实时时钟
DS1284Q/T&R/C07,实时时钟
