| ??? 08/06/09 13:11 Modified: 08/06/09 13:12 Read: times |
#168217 - You can build a 2:1 mux Responding to: ???'s previous message |
Four NAND gates (74HC00) will make a 2:1 positive-logic multiplexer. (Use one of the gates as an inverter.)
RE |
| Topic | Author | Date |
| Digitally switching RX input | 01/01/70 00:00 | |
| Multiplexing | 01/01/70 00:00 | |
| tristate | 01/01/70 00:00 | |
| Spare chips | 01/01/70 00:00 | |
| You can build a 2:1 mux | 01/01/70 00:00 | |
| I vote for Richard's method | 01/01/70 00:00 | |
| 6N138 can be strobed at Vb pin... | 01/01/70 00:00 | |
| Have you considered a chip with 2 UARTs? | 01/01/70 00:00 | |
two diodes and a resistor | 01/01/70 00:00 |