| ??? 04/13/05 00:47 Read: times |
#91486 - Multiplexing Responding to: ???'s previous message |
If you don't feel like time-multiplexing your display (it will look dimmer then normal if you do) like Andy suggested, you may want to try the other type of multiplexing. TI makes a nice BCD to Seven Segment multiplexer ( http://focus.ti.com/lit/ds/symlink/cd4511b.pdf ) for only $0.55 that requires only four input pins, contains a built in latch, and can source up to 25 mA per output pin. Thus, you could power 4 separate Seven Segment Displays off of only one port and may not even need any driving circuit after all. |
| Topic | Author | Date |
| Seven Segment Displays Driven By 8051 | 01/01/70 00:00 | |
| Maxim part | 01/01/70 00:00 | |
| Integrated MUX drivers are 5V only | 01/01/70 00:00 | |
| Confused | 01/01/70 00:00 | |
| Multiplexing 7-segment LED displays | 01/01/70 00:00 | |
| rate of multiplex | 01/01/70 00:00 | |
| Yes, of course, | 01/01/70 00:00 | |
| Further Clarification of My Project | 01/01/70 00:00 | |
| nobody can answer that | 01/01/70 00:00 | |
| No 373s! | 01/01/70 00:00 | |
| Ohhh! Pretty NM | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| MAX7219 | 01/01/70 00:00 | |
| Like this | 01/01/70 00:00 | |
| current? | 01/01/70 00:00 | |
| LSD23255-10 Display Specs | 01/01/70 00:00 | |
| data sheet? | 01/01/70 00:00 | |
| GOOGLE!!! | 01/01/70 00:00 | |
| Multiplexing | 01/01/70 00:00 | |
| Drivers | 01/01/70 00:00 | |
| 74hc595 alt. | 01/01/70 00:00 | |
| TPIC6C595 by TI? | 01/01/70 00:00 | |
Thanks. | 01/01/70 00:00 |