| SN54121J | MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS in 14-pin J package. Operational temperature range from -55°C to 125°C. | Datasheet*) |
| SN74121D | MONOSTABLE MULTIVIBRATOR WITH SCHMITT-TRIGGER INPUTS in 14-pin D package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| SN74121DR | MONOSTABLE MULTIVIBRATOR WITH SCHMITT-TRIGGER INPUTS in 14-pin D package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| SN74121N | MONOSTABLE MULTIVIBRATOR WITH SCHMITT-TRIGGER INPUTS in 14-pin N package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| SN74121N3 | MONOSTABLE MULTIVIBRATOR WITH SCHMITT-TRIGGER INPUTS in 14-pin N package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| SNJ54121J | MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS in 14-pin J package. Operational temperature range from -55°C to 125°C. | Datasheet*) |
| SNJ54121W | MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS in 14-pin W package. Operational temperature range from -55°C to 125°C. | Datasheet*) |
| SNJ54121WA | MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS in 14-pin WA package. Operational temperature range from -55°C to 125°C. | Datasheet*) |
| 74121 | MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS | Datasheet*) |
| SN54121 | MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS | Datasheet*) |
| SN54121W | MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS | Datasheet*) |
| SN74121 | MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS | Datasheet*) |