| MC100LVEL31 | ON Semiconductor | 3.3V ECL D-Type Flip-Flop with Set and Reset |
| MC100LVEL31D | ON Semiconductor | 3.3V ECL D-Type Flip-Flop with Set and Reset |
| MC100LVEL31DR2 | ON Semiconductor | 3.3V ECL D-Type Flip-Flop with Set and Reset |
| MC100LVEL31DT | ON Semiconductor | 3.3V ECL D-Type Flip-Flop with Set and Reset |
| MC100LVEL31DTR2 | ON Semiconductor | 3.3V ECL D-Type Flip-Flop with Set and Reset |