| ??? 03/04/11 01:38 Read: times |
#181426 - Some Points Updated Responding to: ???'s previous message |
Greetings Mr. Kai Klaas and all,
As your advice, I have added 6 cap of 100nF for all 6 chips, also updated the pull up resistor values to 10k. 
Regarding the Schmitt Triggers, it is a Hex Schmitt Triggers, I'm planing to use a SN74LS14 or SN7414. Any advice about the 12VDC 7 Segment connected to 5VDC powered circuit up to the SN74LS247 ? I've tested it in the bareboard circuit, and I think it works just fine with or without the AT89S51 connected, without having any resistor overheated. |
| Topic | Author | Date |
| Verifying Circuit and Program | 01/01/70 00:00 | |
| Attachement? | 01/01/70 00:00 | |
| Verifying Circuit and Program - Attachment ? | 01/01/70 00:00 | |
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| You think we can all access your hard drive? | 01/01/70 00:00 | |
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| As a member.... | 01/01/70 00:00 | |
| I miss... | 01/01/70 00:00 | |
| I miss... | 01/01/70 00:00 | |
| Next try out | 01/01/70 00:00 | |
| caps in datasheet for 7805 | 01/01/70 00:00 | |
| caps in datasheet for 7805 | 01/01/70 00:00 | |
| Soldering the can... | 01/01/70 00:00 | |
| Price of MAX1232 to AT89S51 | 01/01/70 00:00 | |
| alternatives exists | 01/01/70 00:00 | |
| Great thanks | 01/01/70 00:00 | |
| Links... | 01/01/70 00:00 | |
| Update | 01/01/70 00:00 | |
| Some points... | 01/01/70 00:00 | |
Some Points Updated | 01/01/70 00:00 |