| ??? 04/29/09 13:29 Read: times |
#164930 - Outputs during poweron |
I have a 89S52 system driving outputs through 74HC574.
During power on some of the outputs come on. The outputs switch on and and then switch off(as programmed).One of the first instructions after power on is to switch off the outputs. Is there a sure shot way of ensuring that the out puts are suppressed at power-on. The output devices are transistor arrays whose base is driven by 74hc574. thanks in advance Shankara Rao |
| Topic | Author | Date |
| Outputs during poweron | 01/01/70 00:00 | |
| Inverted logic | 01/01/70 00:00 | |
| if they were strong enough | 01/01/70 00:00 | |
| depends | 01/01/70 00:00 | |
| You could use an OR-gate... | 01/01/70 00:00 | |
| why not just an inverter? | 01/01/70 00:00 | |
| how about an inverting version? | 01/01/70 00:00 | |
| suggestions | 01/01/70 00:00 | |
| You have keen eyesigt. | 01/01/70 00:00 | |
yes, but the overlooked fact is .. | 01/01/70 00:00 | |
| 3 possibilities | 01/01/70 00:00 |