| ??? 05/07/08 23:15 Read: times |
#154555 - Level translator Responding to: ???'s previous message |
For the LED's anode you should use some kind of level translator/driver (google). And I should use a NPN darlington with some seris 10K base resistor for cathode (may be ULN2003!!).
ULN2003 is a seven NPN darlington array. It can not source any current to LED´s anodes. |
| Topic | Author | Date |
| At89c52 port pin source | 01/01/70 00:00 | |
| ? | 01/01/70 00:00 | |
| ULN is negative logic. | 01/01/70 00:00 | |
| Level translator | 01/01/70 00:00 | |
| How much current? | 01/01/70 00:00 | |
Power cosumption | 01/01/70 00:00 |