| Per Westermark 01/13/10 00:14 Read: 188 times Sweden |
#172410 - pull-up or other chip? Responding to: Alan Dorman's previous message |
Why not look into any of the 8051 chips that also supports push-pull of I/O pins.
Another thing is that you can also add an external pull-up resistor. The disadvantage is that the processor must then sink the current from the pull-up resistor to hold the signal low so you get a higher current consumption than with a pull-pull design. |
| Topic | Author | Date |
| driving a triac with a ATMEL MCU | Alan Dorman | 01/12/10 23:58 |
| pull-up or other chip? | Per Westermark | 01/13/10 00:14 |
| probably | Stefan KAnev | 01/13/10 01:25 |
| five volts controlling a hundred | Alan Dorman | 01/13/10 04:32 |
| so i answered | Stefan KAnev | 01/13/10 04:52 |
| Throwing out the baby? | Andy Neil | 01/13/10 01:36 |
| previous | Alan Dorman | 01/13/10 04:22 |
| they need freelancers? | Stefan KAnev | 01/13/10 04:28 |
| I see | Andy Neil | 01/13/10 05:21 |
| Yep | Alan Dorman | 01/13/10 11:31 |
| don't forget about "triac drivers" | Richard Erlacher | 01/13/10 08:09 |
| my prefered way | Alan Dorman | 01/13/10 11:37 |
| Do always use a buffer! | Kai Klaas | 01/13/10 08:54 |
| there is an old Philips appnote which ... | Erik Malund | 01/13/10 09:12 |
| incredible | Stefan KAnev | 01/13/10 09:46 |
Thanks! | Alan Dorman | 01/13/10 11:43 |