- X1227S8Z-2.7
- Intersil
- IC RTC/CAL/CPU SUP EE 8-SOIC - X1227S8Z-2.7
- X1227S8Z-2.7A
- Intersil
- IC RTC/CAL/CPU SUP EE 8-SOIC - X1227S8Z-2.7A
- X1227S8Z-4.5A
- Intersil
- IC RTC/CAL/CPU SUP EE 8-SOIC - X1227S8Z-4.5A
- X1227S8ZT1
- Intersil
- IC RTC/CAL/CPU SUP EE 8-SOIC - X1227S8ZT1