| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM612 |  244Kb/10P | Dual-Channel Comparator and Reference |
 National Semiconductor ... | LM6121 |  285Kb/10P | High Speed Buffer |
| LM6121H/883 |  285Kb/10P | High Speed Buffer |
| LM6121J/883 |  285Kb/10P | High Speed Buffer |
| LM6121 |  328Kb/11P | High Speed Buffer |
 National Semiconductor ... | LM6125 |  261Kb/9P | High Speed Buffer |
| LM6125H |  261Kb/9P | High Speed Buffer |
| LM6125H/883 |  261Kb/9P | High Speed Buffer |
| LM612AIN |  244Kb/10P | Dual-Channel Comparator and Reference |
| LM612AMN |  244Kb/10P | Dual-Channel Comparator and Reference |
| LM612IM |  244Kb/10P | Dual-Channel Comparator and Reference |
| LM612IN |  244Kb/10P | Dual-Channel Comparator and Reference |
| LM612MN |  244Kb/10P | Dual-Channel Comparator and Reference |