| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | 74LCX273MSA |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
| 74LCX273MSAX |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
 National Semiconductor ... | 74LCX273MSAX |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
| 74LCX273MTC |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
| 74LCX273MTCX |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
 National Semiconductor ... | 74LCX273SJ |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
| 74LCX273SJX |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
| 74LCX273WM |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
| 74LCX273WMX |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |
| 74LCX273 |  63Kb/2P | Low-Voltage Octal D Flip-Flop with 5V Tolerant Inputs and Outputs |