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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 1. |  MM74C922 | 16, 20-Key Encoder | National Semiconductor | NSC | - | - | - | 227 Kb |
| 2. | MM74C922 | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 121 Kb |
| 3. | MM74C922N | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 121 Kb |
| 4. | MM74C922N | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 136 Kb |
| 5. | MM74C922WM | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 136 Kb |
| 6. | MM74C922WM | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 121 Kb |
| 7. | MM74C922WMX | 16-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 121 Kb |
| 8. | MM74C923 | 16, 20-Key Encoder | National Semiconductor | NSC | - | - | - | 227 Kb |
| 9. | MM74C923 | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 121 Kb |
| 10. | MM74C923CW | 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 121 Kb |
| 11. | MM74C923N | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 121 Kb |
| 12. | MM74C923N | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 136 Kb |
| 13. | MM74C923WM | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 136 Kb |
| 14. | MM74C923WM | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 121 Kb |
| 15. | MM74C923WMX | 16-Key Encoder 20-Key Encoder | Fairchild Semiconductor | FAIRCHILD | - | - | - | 136 Kb |
| 16. | MM74C925 | 4-Digit Counters with Multiplexed | Fairchild Semiconductor | FAIRCHILD | - | - | - | 106 Kb |
| 17. | MM74C925 | 4-Digit Counters with Multiplexed | Fairchild Semiconductor | FAIRCHILD | - | - | - | 103 Kb |
| 18. | MM74C925 | 4-Digit Counters with Multiplexed 7-Segment Output Drivers | National Semiconductor | NSC | - | - | - | 209 Kb |
| 19. | MM74C925N | 4-Digit Counters with Multiplexed | Fairchild Semiconductor | FAIRCHILD | - | - | - | 106 Kb |
| 20. | MM74C925N | 4-Digit Counters with Multiplexed | Fairchild Semiconductor | FAIRCHILD | - | - | - | 103 Kb |
