| ??? 02/10/06 05:34 Read: times |
#109672 - using a latch to interface keyboard Responding to: ???'s previous message |
"I am really curious what kind of a matrix keyboard you refer to, there should be no "supply" thus no interface problem."
I am using a latch(74HC373) which interfaces the matrix keyboard (4x4) to the microcontroller 89LV51RD2. Hence I had asked. Thanks for the quick response. Sushil |
| Topic | Author | Date |
| Interface between LV uC & peripherals | 01/01/70 00:00 | |
| sure ... | 01/01/70 00:00 | |
| And we covered the LCD problem | 01/01/70 00:00 | |
| If you do not care about noise margin, t | 01/01/70 00:00 | |
| using a latch to interface keyboard | 01/01/70 00:00 | |
| well then | 01/01/70 00:00 | |
| good quote | 01/01/70 00:00 | |
| if, the port is "5V tolerant" and drivin | 01/01/70 00:00 | |
| using a DataFlash (works only on 3v3) | 01/01/70 00:00 | |
| in and out | 01/01/70 00:00 | |
Thanks for the quick response | 01/01/70 00:00 |