| ??? 06/13/05 13:55 Read: times |
#94796 - it's not just CMOS Responding to: ???'s previous message |
Obviously, the '51s are then not purely CMOS.
For example, the P89C51Rx2 datasheet said: I don't know what accounts for that 10.5mA, but in all '51 clones I have seen similarly high (several mA) zero-frequency current (or no data was available - probably indicating something similar, otherwise I think the manufacturer would proudly advertise the low power consumption).
Active mode: I CC(MAX) = (10.5 + 0.9 × FREQ.[MHz])mA in 12-clock mode To get down into the <100uA region, the powerdown mode has to be used; but then the computing power is zero... A trick with switching between active and powerdown cuts down the average consumption, but the microcontroller families with generically lower consumption can use the same trick, getting the consumption even lower... Jan Waclawek |
| Topic | Author | Date |
| Minimizing port pin currents | 01/01/70 00:00 | |
| Old threas | 01/01/70 00:00 | |
| Thread Vs Reply | 01/01/70 00:00 | |
| What would be good | 01/01/70 00:00 | |
| for me it does | 01/01/70 00:00 | |
| Re: for me it does | 01/01/70 00:00 | |
| No worry... | 01/01/70 00:00 | |
| but | 01/01/70 00:00 | |
| Sorry, I misinterpreted Musharraf | 01/01/70 00:00 | |
| low power | 01/01/70 00:00 | |
| re | 01/01/70 00:00 | |
| TI ? | 01/01/70 00:00 | |
| Total agree | 01/01/70 00:00 | |
| low power MCUs | 01/01/70 00:00 | |
| App notes | 01/01/70 00:00 | |
| Any link for low power appnote? | 01/01/70 00:00 | |
| Damn all | 01/01/70 00:00 | |
| static current? | 01/01/70 00:00 | |
| very low frequencies | 01/01/70 00:00 | |
| it's not just CMOS | 01/01/70 00:00 | |
| Biasing generator for the substrate? | 01/01/70 00:00 | |
| flash? | 01/01/70 00:00 | |
| consumption overview | 01/01/70 00:00 | |
| SiLabs Wins Then? | 01/01/70 00:00 | |
I don't know | 01/01/70 00:00 | |
| Do worry! | 01/01/70 00:00 | |
| High impedance | 01/01/70 00:00 | |
| Battery powered circuits | 01/01/70 00:00 |