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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 1. |  HD74LS20 | Dual 4-input Positive NAND Gates | Hitachi Semiconductor | HITACHI | - | - | - | 45 Kb |
| 2. | HD74LS20 | Dual 4-input Positive NAND Gates | Hitachi Semiconductor | HITACHI | - | - | - | 45 Kb |
| 3. | HD74LS20 | Dual 4-input Positive NAND Gates | Renesas Technology Corp | RENESAS | - | - | - | 65 Kb |
| 4. | HD74LS20 | Ouadruple 2-input Positive NAND Gates | Hitachi Semiconductor | HITACHI | - | - | - | 5.74 Mb |
| 5. | HD74LS20FPEL | Dual 4-input Positive NAND Gates | Renesas Technology Corp | RENESAS | - | - | - | 65 Kb |
| 6. | HD74LS20P | Dual 4-input Positive NAND Gates | Renesas Technology Corp | RENESAS | - | - | - | 65 Kb |
| 7. | HD74LS20RPEL | Dual 4-input Positive NAND Gates | Renesas Technology Corp | RENESAS | - | - | - | 65 Kb |
| 8. | HD74LS21 | Dual 4-input Positive AND Gates | Hitachi Semiconductor | HITACHI | - | - | - | 46 Kb |
| 9. | HD74LS21 | Dual 4-input Positive AND Gates | Renesas Technology Corp | RENESAS | - | - | - | 53 Kb |
| 10. | HD74LS21FPEL | Dual 4-input Positive AND Gates | Renesas Technology Corp | RENESAS | - | - | - | 53 Kb |
| 11. | HD74LS21P | Dual 4-input Positive AND Gates | Renesas Technology Corp | RENESAS | - | - | - | 53 Kb |
| 12. | HD74LS22 | Ouadruple 2-input Positive NAND Gates | Hitachi Semiconductor | HITACHI | - | - | - | 5.74 Mb |
| 13. | HD74LS22 | Dual 4-input Positive NAND Gates(with Open Collector Ouputs) | Hitachi Semiconductor | HITACHI | - | - | - | 47 Kb |
| 14. | HD74LS221 | Dual Monostable Multivibrators | Hitachi Semiconductor | HITACHI | - | - | - | 94 Kb |
| 15. | HD74LS221 | Ouadruple 2-input Positive NAND Gates | Hitachi Semiconductor | HITACHI | - | - | - | 5.74 Mb |
| 16. | HD74LS221 | Dual Monostable Multivibrators | Renesas Technology Corp | RENESAS | - | - | - | 103 Kb |
| 17. | HD74LS221P | Dual Monostable Multivibrators | Renesas Technology Corp | RENESAS | - | - | - | 103 Kb |
| 18. | HD74LS221RPEL | Dual Monostable Multivibrators | Renesas Technology Corp | RENESAS | - | - | - | 103 Kb |
| 19. | HD74LS240 | Ouadruple 2-input Positive NAND Gates | Hitachi Semiconductor | HITACHI | - | - | - | 5.74 Mb |
| 20. | HD74LS240 | Octal Buffers/Line Drivers/Line Receivers(inverted three-state outputs) | Hitachi Semiconductor | HITACHI | - | - | - | 56 Kb |
| 21. | HD74LS240 | Octal Buffers / Line Drivers / Line Receivers (inverted three-state outputs) | Renesas Technology Corp | RENESAS | - | - | - | 75 Kb |
