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| # | Part: | Description: | Manuf. | Package | Pins | T°min | T°max | PDF size |
| 1. |  DM74LS192 | 54LS192/DM74LS192 Up/Down Decade Counter with Separate Up/Down Clocks | National Semiconductor | NSC | - | - | - | 157 Kb |
| 2. | DM74LS190 | Synchronous 4-Bit Up/Down Counters with Mode Control | National Semiconductor | NSC | - | - | - | 171 Kb |
| 3. | DM74LS190M | Synchronous 4-Bit Up/Down Counters with Mode Control | National Semiconductor | NSC | - | - | - | 171 Kb |
| 4. | DM74LS190N | Synchronous 4-Bit Up/Down Counters with Mode Control | National Semiconductor | NSC | - | - | - | 171 Kb |
| 5. | DM74LS191 | Synchronous 4-Bit Up/Down Counter with Mode Control | Fairchild Semiconductor | FAIRCHILD | - | - | - | 76 Kb |
| 6. | DM74LS191 | Synchronous 4-Bit Up/Down Counters with Mode Control | National Semiconductor | NSC | - | - | - | 171 Kb |
| 7. | DM74LS191M | Synchronous 4-Bit Up/Down Counter with Mode Control | Fairchild Semiconductor | FAIRCHILD | - | - | - | 76 Kb |
| 8. | DM74LS191M | Synchronous 4-Bit Up/Down Counters with Mode Control | National Semiconductor | NSC | - | - | - | 171 Kb |
| 9. | DM74LS191MX | Synchronous 4-Bit Up/Down Counter With Mode Control | Fairchild Semiconductor | FAIRCHILD | - | - | - | 76 Kb |
| 10. | DM74LS191N | Synchronous 4-Bit Up/Down Counter with Mode Control | Fairchild Semiconductor | FAIRCHILD | - | - | - | 76 Kb |
| 11. | DM74LS191N | Synchronous 4-Bit Up/Down Counters with Mode Control | National Semiconductor | NSC | - | - | - | 171 Kb |
| 12. | DM74LS192 | 54LS192/DM74LS192 Up/Down Decade Counter with Separate Up/Down Clocks | National Semiconductor | NSC | - | - | - | 157 Kb |
| 13. | DM74LS192M | 54LS192/DM74LS192 Up/Down Decade Counter with Separate Up/Down Clocks | National Semiconductor | NSC | - | - | - | 157 Kb |
| 14. | DM74LS192N | 54LS192/DM74LS192 Up/Down Decade Counter with Separate Up/Down Clocks | National Semiconductor | NSC | - | - | - | 157 Kb |
| 15. | DM74LS193 | Synchronous 4-Bit Binary Counter with Dual Clock | Fairchild Semiconductor | FAIRCHILD | - | - | - | 81 Kb |
| 16. | DM74LS193CW | Synchronous 4-Bit Up/Down Binary Counter with Dual Clock | Fairchild Semiconductor | FAIRCHILD | - | - | - | 81 Kb |
| 17. | DM74LS193M | Synchronous 4-Bit Binary Counter with Dual Clock | Fairchild Semiconductor | FAIRCHILD | - | - | - | 81 Kb |
| 18. | DM74LS193MX | Synchronous 4-Bit Up/Down Binary Counter with Dual Clock | Fairchild Semiconductor | FAIRCHILD | - | - | - | 81 Kb |
| 19. | DM74LS193N | Synchronous 4-Bit Binary Counter with Dual Clock | Fairchild Semiconductor | FAIRCHILD | - | - | - | 81 Kb |
| 20. | DM74LS194 | 4-Bit Bidirectional Universal Shift Register | Fairchild Semiconductor | FAIRCHILD | - | - | - | 74 Kb |
| 21. | DM74LS194A | 4-Bit Bidirectional Universal Shift Register | Fairchild Semiconductor | FAIRCHILD | - | - | - | 74 Kb |
