| ??? 01/09/12 14:25 Read: times |
#185388 - AT89S52 Questions |
Hello! I had some questions concerning AT89s52.
1)Why is P0 an open drain? Is it related to being able to use that port for addresses? 2)Why the value of 10k ohms resistor array used as pull-up on P0? Also any source of explaining the source/sink ?(tried googling but none of the results I understood well) Thanks! |
| Topic | Author | Date |
| AT89S52 Questions | 01/01/70 00:00 | |
| because the designer | 01/01/70 00:00 | |
Sink & Source - Basic Electronics | 01/01/70 00:00 |