DS1338U-33+,IC RTC 56BYTE NV RAM 3.3V 8-USOP
DS1338U-33+T&R,IC RTC CLOCK/CALENDAR I2C 8UMAX
DS1338U-33+T&R,IC RTC 56BYTE NV RAM 3.3V 8-USOP
DS1338UA-33+,实时时钟
DS1338UA-33+T&R,实时时钟
DS1338Z-18,IC RTC 56BYTE NV RAM 1.8V 8-SOIC
DS1338Z-18+,IC RTC 56BYTE NV RAM 1.8V 8-SOIC
