| ??? 03/04/02 15:03 Read: times |
#20370 - RE: what\\\'s the need of pullup for real |
P0 needs pullups because it is an input ! NOT just because it is open drain. If P0 were not an input, it would not need pullups! The reason for the pullups is to keep the input transistor happy . And, since it is open drain, it can not be happy all the time without being pulled to a valid logic level. |
| Topic | Author | Date |
| what's the need of pullup for P0 | 01/01/70 00:00 | |
| RE: what's the need of pullup for P0 | 01/01/70 00:00 | |
| RE: what's the need of pullup for P0 | 01/01/70 00:00 | |
| RE: what\'s the need of pullup for P0 | 01/01/70 00:00 | |
| RE: what's the need of pullup for P0 "J" | 01/01/70 00:00 | |
| RE: what's the need of pullup more | 01/01/70 00:00 | |
| RE: what\\\'s the need of pullup more | 01/01/70 00:00 | |
| RE: what\\\'s the need of pullup more | 01/01/70 00:00 | |
| RE: what's the need of pullup Philip | 01/01/70 00:00 | |
| RE: what\\\'s the need of pullup more | 01/01/70 00:00 | |
| RE: what's the need of pullup for P0 "J" | 01/01/70 00:00 | |
| RE: what's the need of pullup Philip | 01/01/70 00:00 | |
| RE: what\\\'s the need of pullup for P0 \\ | 01/01/70 00:00 | |
| RE: what's the need of pullup Philip | 01/01/70 00:00 | |
| RE: what is float state-phillip | 01/01/70 00:00 | |
| RE: what's the need of pullup Philip | 01/01/70 00:00 | |
| RE: what\\\'s the need of pullup for real | 01/01/70 00:00 | |
RE: what is float state-phillip | 01/01/70 00:00 |