| ??? 07/16/12 05:32 Read: times |
#187943 - 74LS245 ouput cable drive distance |
I just bought a PCI card for IO control, and it has TTL output signals for driving external ULNs. PCI card uses 74LS245 (IOH=3 mA, IOL=12 mA). They have provided an FRC cable, 2 meters long for the output of 245 (24 outputs + single ground wire). Can this chip drive through 2 meter cable? Ribbon cable has outputs in continuous lines, ie not with ground interleaved. Will there be crosstalk? (It works, but I just need to be sure before using it in my project) |
| Topic | Author | Date |
| 74LS245 ouput cable drive distance | 01/01/70 00:00 | |
| what is the termination | 01/01/70 00:00 | |
| Frequancy? | 01/01/70 00:00 | |
| not only capacitance | 01/01/70 00:00 | |
| Thanks for the replies | 01/01/70 00:00 | |
| DC | 01/01/70 00:00 | |
| one thing to consider ... | 01/01/70 00:00 | |
| "an industrial automation project" | 01/01/70 00:00 | |
| Industrial environments can be dangerous to electronics | 01/01/70 00:00 | |
optical isolation | 01/01/70 00:00 |