| 100391 | Fairchild Semiconductor | Low Power Hex TTL-to-ECL Translator |
| 100391PC | Fairchild Semiconductor | Low Power Hex TTL-to-ECL Translator |
| 100391QC | Fairchild Semiconductor | Low Power Hex TTL-to-ECL Translator |
| 100391QCX | Fairchild Semiconductor | Low Power Hex TTL-to-ECL Translator |
| 100391QI | Fairchild Semiconductor | Low Power Hex TTL-to-ECL Translator |
| 100391QIX | Fairchild Semiconductor | Low Power Hex TTL-to-ECL Translator |
| 100391SC | Fairchild Semiconductor | Low Power Hex TTL-to-ECL Translator |
| 100391SCX | Fairchild Semiconductor | Low Power Hex TTL-to-ECL Translator |