| ??? 07/14/05 14:38 Read: times |
#97371 - 4.7 V for at89c2051 programmer..enough? |
Hello 8051-family
I`ve build a voltage supply for an at89c2051 programer. The output should be 12 and 5V to program the chip. Some measures with the multimeter between + and ground gave me 12.3V and 4.7V. 12.3V is ok but I 4.7V wont do the job I`m afraid. What do you think, should I give it a try? The schematic for the power supply looks like this: http://3dcoders.bugpower.ch/v12v5.png (pic is a bit small, sorry) Greetings Karim |
| Topic | Author | Date |
| 4.7 V for at89c2051 programmer..enough? | 01/01/70 00:00 | |
| 4.7 V? | 01/01/70 00:00 | |
| load? | 01/01/70 00:00 | |
| Rise, not fall... | 01/01/70 00:00 | |
| oscillating | 01/01/70 00:00 | |
| that is the problem and still those with | 01/01/70 00:00 | |
| 79XX are even more weird | 01/01/70 00:00 | |
| 79xx - same with me | 01/01/70 00:00 | |
oscillation | 01/01/70 00:00 | |
| Thermal shut-down? | 01/01/70 00:00 | |
| get 4.91V now !! | 01/01/70 00:00 | |
| 4.91 V | 01/01/70 00:00 | |
| diode | 01/01/70 00:00 |