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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 1. |  MM74HC237N | 3-to-8 Line Decoder With Address Latches | National Semiconductor | NSC | - | - | - | 147 Kb |
| 2. | MM74HC20 | Dual 4-Input NAND Gate | National Semiconductor | NSC | - | - | - | 128 Kb |
| 3. | MM74HC221 | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 4. | MM74HC221A | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 5. | MM74HC221A | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 124 Kb |
| 6. | MM74HC221ACW | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 7. | MM74HC221AM | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 8. | MM74HC221AM | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 124 Kb |
| 9. | MM74HC221AMTC | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 10. | MM74HC221AMX | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 11. | MM74HC221AN | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 124 Kb |
| 12. | MM74HC221AN | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 13. | MM74HC221ASJ | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 14. | MM74HC221ASJ | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 124 Kb |
| 15. | MM74HC221ASJX | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 16. | MM74HC221A_04 | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 124 Kb |
| 17. | MM74HC221CW | Dual Non-Retriggerable Monostable Multivibrator | Fairchild Semiconductor | FAIRCHILD | - | - | - | 115 Kb |
| 18. | MM74HC237 | 3-to-8 Line Decoder With Address Latches | National Semiconductor | NSC | - | - | - | 147 Kb |
| 19. | MM74HC237J | 3-to-8 Line Decoder With Address Latches | National Semiconductor | NSC | - | - | - | 147 Kb |
| 20. | MM74HC237N | 3-to-8 Line Decoder With Address Latches | National Semiconductor | NSC | - | - | - | 147 Kb |
| 21. | MM74HC240 | Inverting Octal 3-STATE Buffer | Fairchild Semiconductor | FAIRCHILD | - | - | - | 107 Kb |
