| ??? 02/11/09 10:37 Read: times |
#162278 - to buffer, or not to buffer? |
Hello All
I am in the middle of the design of a sort of 8051 remote control terminal. It will have a VFD display, and 12 pushbuttons each having a red and a green associated led. Despite the number of I/O's, its quite simple. It will be driven by a Silabs C8051F044. Like several others here, I prefer to have a buffer of some sort between my micro and the nasty outside world. But in this case I have some doubt. Since these I/O's never leave the metal enclosure, is it really necessary with a buffer? I should add that this isn’t a toy or something like it. Money isn’t a big issue; on the other hand "over engineering" could be! Any comments appreciated Have a nice day! Per |
| Topic | Author | Date |
| to buffer, or not to buffer? | 01/01/70 00:00 | |
| Consider the usage environment | 01/01/70 00:00 | |
| ESD on buttons | 01/01/70 00:00 | |
| HC's and a resistor and a cap... | 01/01/70 00:00 | |
| reply | 01/01/70 00:00 | |
| Shunt ESD currents to the metall enclosure! | 01/01/70 00:00 | |
| Reply | 01/01/70 00:00 | |
| Hae you considered 74S1053? | 01/01/70 00:00 | |
Reply - 74S1053 | 01/01/70 00:00 |