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| Overclocking an uncooled ATtiny to 44.24Mhz |
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| ralphd:
And it even worked occasionally at 3.3V! I also tried an external 3-stage ring oscillator with a 7404 which generated a 28Mhz clock. http://nerdralph.blogspot.ca/2015/07/externally-clocking-and-overclocking.html I've seen ATtiny85's overclocked to 30Mhz, and with the PLL generate a 60Mhz output. May try that in the future as a source for a ~60Mhz clock... |
| JoeN:
Sounds like fun but don't put something like that into a project you might actually use someday. For fun today, I picked up some PCBs that were lying around at the local surplus store for a dollar each. Some of them actually had decent parts on them - SRAM, FLASH memories, a 68K ROMless controller, some big inductors, Maxim RS232 chips, etc. I just desoldered my new used parts. That's what I do for fun, I guess. You overclock. We are having fun on the cheap! Better idea than drugs! |
| amyk:
I suspect the clock speed is limited by gate delay and not power dissipation. |
| technix:
--- Quote from: JoeN on July 29, 2015, 03:39:45 am ---Sounds like fun but don't put something like that into a project you might actually use someday. For fun today, I picked up some PCBs that were lying around at the local surplus store for a dollar each. Some of them actually had decent parts on them - SRAM, FLASH memories, a 68K ROMless controller, some big inductors, Maxim RS232 chips, etc. I just desoldered my new used parts. That's what I do for fun, I guess. You overclock. We are having fun on the cheap! Better idea than drugs! --- End quote --- Ooh my standard procedure of demolishing electronics is a trip to the hot air gun and take all identifiable chips. I scored an ATmega128 once that way, maybe I can put that into a project somehow. |
| JoeN:
Here is what I got from one board for 93 cents ($1 with tax). The inductors I mention are on a different board and I haven't done that one yet. The switches came out hard, not sure if they are good or not. One crystal's plastic pad is a little warped too. The other parts came out fine. It was some sort of industrial ARCNet/RS242/RS485 board. |
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