DS1307,IC RTC SERIAL 512K 8-DIP
DS1307+,IC RTC SERIAL 512K 8-DIP
DS1307N,IC RTC SERIAL 512K IND 8-DIP
DS1307N+,IC RTC SERIAL 512K IND 8-DIP
DS1307Z,IC RTC SERIAL 512K 8-SOIC
DS1307Z/T&R,IC RTC CLK/CALENDAR I2C 8SOIC
DS1307Z/T&R,实时时钟 64x8 Serial I2C RTC
DS1307Z/T&R/C03,实时时钟