| ??? 02/27/06 14:27 Read: times |
#110849 - no answer possible Responding to: ???'s previous message |
will that +5V be enough (with its capacitors on each module) keep the whole string powered properly?
"the whole string" can not be answered, there is no info as to "the string" asking in the extreme: if the string is 1 cm long, yes it will work, if it is a mile, no it will not. The whole thing is about capacitance and every foot of "string" will add to that. Tale the input capacitance of the chip, multiply by 16, make a calculation/estimate of tyhe wiring capacitance and then compatre that to the standard and you will know. Well the manufucturer specs shows that it support 16 addresses on the chip. How very inventive, I saw 2 address pins, have never till now seen addressing by connecting address pins tp SDA/SCL, so, yes you are right you can have 16 Erik |
| Topic | Author | Date |
| m5451 3 output bits | 01/01/70 00:00 | |
| please no numbers | 01/01/70 00:00 | |
| m5451 | 01/01/70 00:00 | |
| maybe you can, but with some trouble | 01/01/70 00:00 | |
| ST 4-5 digit LED driver | 01/01/70 00:00 | |
| ??? | 01/01/70 00:00 | |
| multiplexing | 01/01/70 00:00 | |
| multiplexing chips. | 01/01/70 00:00 | |
| seek and ye shall find | 01/01/70 00:00 | |
| Intersil and Maxium | 01/01/70 00:00 | |
| Erik | 01/01/70 00:00 | |
| sure | 01/01/70 00:00 | |
| EE question. | 01/01/70 00:00 | |
| the problem is not power | 01/01/70 00:00 | |
| i2c | 01/01/70 00:00 | |
| i2c | 01/01/70 00:00 | |
| no answer possible | 01/01/70 00:00 | |
| module "string" | 01/01/70 00:00 | |
| Current? | 01/01/70 00:00 | |
| current. | 01/01/70 00:00 | |
| Supply lines | 01/01/70 00:00 | |
| Remember ground | 01/01/70 00:00 | |
| ground last module. | 01/01/70 00:00 | |
| last module. | 01/01/70 00:00 | |
| I disagree | 01/01/70 00:00 | |
| supply lines | 01/01/70 00:00 | |
| Sorry, my bad | 01/01/70 00:00 | |
| supply lines. | 01/01/70 00:00 | |
| If DM mean diode matrix, then | 01/01/70 00:00 | |
| DM | 01/01/70 00:00 | |
| you still are, where is the answer? | 01/01/70 00:00 | |
| still are. | 01/01/70 00:00 | |
not the capability of the driver, the cu | 01/01/70 00:00 |