| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | DM74LS123M |  135Kb/6P | Dual Retriggerable One-Shot with Clear and Complementary Outputs |
 National Semiconductor ... | DM74LS123N |  135Kb/6P | Dual Retriggerable One-Shot with Clear and Complementary Outputs |
 National Semiconductor ... | DM74LS122 |  129Kb/6P | DM74LS122 Retriggerable One-Shot with Clear and Complementary Outputs |
 National Semiconductor ... | DM74LS123 |  135Kb/6P | Dual Retriggerable One-Shot with Clear and Complementary Outputs |
 National Semiconductor ... | DM74LS125A |  122Kb/6P | Quad TRI-STATE Buffers |
 National Semiconductor ... | DM74LS126A |  95Kb/4P | Quad TRI-STATE Buffer |
| DM74LS126A |  74Kb/3P | QUAD TRI-STATE BUFFERS |