| Nr. | Part Name | Description | Manufacturer by |
| 1024121 | X1228S14 | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024122 | X1228S14-2.7 | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024123 | X1228S14-2.7A | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024124 | X1228S14-4.5A | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024125 | X1228S14I | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024126 | X1228S14I-2.7 | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024127 | X1228S14I-2.7A | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024128 | X1228S14I-4.5A | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024129 | X1228V14 | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024130 | X1228V14-2.7 | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024131 | X1228V14-2.7A | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024132 | X1228V14-4.5A | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024133 | X1228V14I | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024134 | X1228V14I-2.7 | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024135 | X1228V14I-2.7A | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024136 | X1228V14I-4.5A | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024137 | X1240 | Real Time Clock/Calendar with EEPROM | Xicor |
| 1024138 | X1240S8 | Real Time Clock/Calendar with EEPROM | Xicor |
| 1024139 | X1240S8I | Real Time Clock/Calendar with EEPROM | Xicor |
| 1024140 | X1240V8 | Real Time Clock/Calendar with EEPROM | Xicor |
| 1024141 | X1240V8I | Real Time Clock/Calendar with EEPROM | Xicor |
| 1024142 | X1243 | Real Time Clock/Calendar/Alarm with EEPROM | Xicor |
| 1024143 | X1243S8 | Real Time Clock/Calendar/Alarm with EEPROM | Xicor |
| 1024144 | X1243S8I | Real Time Clock/Calendar/Alarm with EEPROM | Xicor |
| 1024145 | X1243V8 | Real Time Clock/Calendar/Alarm with EEPROM | Xicor |
| 1024146 | X1286 | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024147 | X1286 | Intersil Real Time Clock/Calendar/CPU Supervisor with EEPROM X1286 | Intersil |
| 1024148 | X1286A8 | Intersil Real Time Clock/Calendar/CPU Supervisor with EEPROM X1286 | Intersil |
| 1024149 | X1286A8I | Intersil Real Time Clock/Calendar/CPU Supervisor with EEPROM X1286 | Intersil |
| 1024150 | X1286V14 | Intersil Real Time Clock/Calendar/CPU Supervisor with EEPROM X1286 | Intersil |
| 1024151 | X1286V14I | Intersil Real Time Clock/Calendar/CPU Supervisor with EEPROM X1286 | Intersil |
| 1024152 | X1288 | Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024153 | X1288S16 | 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024154 | X1288S16-2.7 | 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024155 | X1288S16-2.7A | 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024156 | X1288S16-4.5A | 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024157 | X1288S16I | 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024158 | X1288S16I-2.7 | 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024159 | X1288S16I-2.7A | 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
| 1024160 | X1288S16I-4.5A | 2-Wire RTC Real Time Clock/Calendar/CPU Supervisor with EEPROM | Xicor |
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