| ??? 12/23/03 17:12 Read: times |
#61284 - RE: P89c51 output drive of P2-Erik Responding to: ???'s previous message |
"1) the '51 does nor drive IOH, It drives Iih. "
Sorry - I am not clear on this. Can you eloborate please? "2) are you sure that there are no pullup resistors on the port" Yes there are no pull up resistors on the port. "3) The fact that only 30uA is a vailable at Vcc-0.7 does not mean that 300uA is not avialable at Vcc-1.0 " Maybe that is why the display is working ? Raghu |
| Topic | Author | Date |
| P89c51 output drive of P2 | 01/01/70 00:00 | |
| RE: P89c51 output drive of P2 | 01/01/70 00:00 | |
| RE: P89c51 output drive of P2 | 01/01/70 00:00 | |
| RE: P89c51 output drive of P2 | 01/01/70 00:00 | |
| RE: P89c51 output drive of P2 | 01/01/70 00:00 | |
| RE: P89c51 output drive of P2-Erik | 01/01/70 00:00 | |
| RE: P89c51 output drive of P2-Erik | 01/01/70 00:00 | |
| RE: P89c51 output drive of P2 | 01/01/70 00:00 | |
P89c51 output drive of P2 - Kai, Erik | 01/01/70 00:00 |