| 54F257ALMQB | National Semiconductor | Quad 2-Input Multiplexer with TRI-STATE Outputs |
| 54F258A | National Semiconductor | Quad 2-Input Multiplexer with TRI-STATE Outputs (Inverting) [Life-time buy] |
| 54F258ADMQB | National Semiconductor | Quad 2-Input Multiplexer with TRI-STATE Outputs (Inverting) [Life-time buy] |
| 54F258ALMQB | National Semiconductor | Quad 2-Input Multiplexer with TRI-STATE Outputs (Inverting) [Life-time buy] |
| 54F273 | National Semiconductor | Octal D Flip-Flop |
| 54F280 | National Semiconductor | 9-Bit Parity Generator/Checker |
| 54F280DMQB | National Semiconductor | 9-Bit Parity Generator/Checker |
| 54F280FMQB | National Semiconductor | 9-Bit Parity Generator/Checker |
| 54F280J-MLS | National Semiconductor | 9-Bit Parity Generator/Checker |
| 54F280LMQB | National Semiconductor | 9-Bit Parity Generator/Checker |
| 54F283 | National Semiconductor | 4-Bit Binary Full Adder with Fast Carry |
| 54F283DMQB | National Semiconductor | 4-Bit Binary Full Adder with Fast Carry |
| 54F283FMQB | National Semiconductor | 4-Bit Binary Full Adder with Fast Carry |
| 54F283LMQB | National Semiconductor | 4-Bit Binary Full Adder with Fast Carry |
| 54F299 | National Semiconductor | Octal Universal Shift/Storage Register with Common Parallel I/O Pins |
| 54F299DMQB | National Semiconductor | Octal Universal Shift/Storage Register with Common Parallel I/O Pins |
| 54F299LMQB | National Semiconductor | Octal Universal Shift/Storage Register with Common Parallel I/O Pins |
| 54F32 | National Semiconductor | Quad 2-Input OR Gate |
| 54F322 | National Semiconductor | Octal Serial/Parallel Register with Sign Extend |
| 54F32DMQB | National Semiconductor | Quad 2-Input OR Gate |