| 165841 | 74HCT251 | 3-state | Philips |
| 165842 | 74HCT251D | 8-input multiplexer; 3-state | Nexperia |
| 165843 | 74HCT251D | 8-input multiplexer; 3-state | NXP Semiconductors |
| 165844 | 74HCT251D | 74HC/HCT251; 8-input multiplexer; 3-state | Philips |
| 165845 | 74HCT251D-Q100 | 8-input multiplexer; 3-state | Nexperia |
| 165846 | 74HCT251D-Q100 | 8-input multiplexer; 3-state | NXP Semiconductors |
| 165847 | 74HCT251DB | 8-input multiplexer; 3-state | Nexperia |
| 165848 | 74HCT251DB | 8-input multiplexer; 3-state | NXP Semiconductors |
| 165849 | 74HCT251DB | 74HC/HCT251; 8-input multiplexer; 3-state | Philips |
| 165850 | 74HCT251DB-Q100 | 8-input multiplexer; 3-state | Nexperia |
| 165851 | 74HCT251N | 8-input multiplexer; 3-state | NXP Semiconductors |
| 165852 | 74HCT251N | 74HC/HCT251; 8-input multiplexer; 3-state | Philips |
| 165853 | 74HCT251PW | 8-input multiplexer; 3-state | Nexperia |
| 165854 | 74HCT251PW | 8-input multiplexer; 3-state | NXP Semiconductors |
| 165855 | 74HCT251PW | 74HC/HCT251; 8-input multiplexer; 3-state | Philips |
| 165856 | 74HCT251PW-Q100 | 8-input multiplexer; 3-state | Nexperia |
| 165857 | 74HCT251PW-Q100 | 8-input multiplexer; 3-state | NXP Semiconductors |
| 165858 | 74HCT251U | 8-input multiplexer; 3-state | Philips |
| 165859 | 74HCT253 | 3-state | Philips |
|
| 165860 | 74HCT253D | Dual 4-input multiplexer; 3-state | Nexperia |
| 165861 | 74HCT253D | Dual 4-input multiplexer; 3-state | NXP Semiconductors |
| 165862 | 74HCT253D | 74HC253;74HCT253; Dual 4-input multiplexer; 3-state | Philips |
| 165863 | 74HCT253D-Q100 | Dual 4-input multiplexer; 3-state | Nexperia |
| 165864 | 74HCT253D-Q100 | Dual 4-input multiplexer; 3-state | NXP Semiconductors |
| 165865 | 74HCT253DB | Dual 4-input multiplexer; 3-state | Nexperia |
| 165866 | 74HCT253DB | Dual 4-input multiplexer; 3-state | NXP Semiconductors |
| 165867 | 74HCT253DB | 74HC253;74HCT253; Dual 4-input multiplexer; 3-state | Philips |
| 165868 | 74HCT253N | Dual 4-input multiplexer; 3-state | NXP Semiconductors |
| 165869 | 74HCT253N | 74HC253;74HCT253; Dual 4-input multiplexer; 3-state | Philips |
| 165870 | 74HCT253U | Dual 4-input multiplexer; 3-state | Philips |
| 165871 | 74HCT257 | 3-state | Philips |
| 165872 | 74HCT257D | Quad 2-input multiplexer; 3-state | Nexperia |
| 165873 | 74HCT257D | Quad 2-input multiplexer; 3-state | NXP Semiconductors |
| 165874 | 74HCT257D | Quad 2-input multiplexer 3-state | Philips |
| 165875 | 74HCT257D-Q100 | Quad 2-input multiplexer; 3-state | Nexperia |
| 165876 | 74HCT257DB | Quad 2-input multiplexer; 3-state | Nexperia |
| 165877 | 74HCT257DB | Quad 2-input multiplexer; 3-state | NXP Semiconductors |
| 165878 | 74HCT257DB | Quad 2-input multiplexer 3-state | Philips |
| 165879 | 74HCT257N | Quad 2-input multiplexer; 3-state | NXP Semiconductors |
| 165880 | 74HCT257N | Quad 2-input multiplexer 3-state | Philips |
