Hey guys have you heard about this ?
https://db-electronics.ca/2017/07/05/the-dangers-of-3-3v-flash-in-retro-consoles/#comment-2809
This problem affects some variant/versions of everdrives, and I think the NeoSD...
I suppose the DS version is safe with that
I posted asking on the everdrive forums about this. Frankly this line is what got me:
3.75V is in fact lower than the Absolute Maximum Rating Voltage Input of Vcc + 0.6V. But, designs should never exceed the DC Characteristics of a component. Furthermore, as can be read from the paragraph in the M29W datasheet below, “
These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operatings sections of this specification is not implied”. Or, to summarise, don’t count on the part working properly above the specifications of Table 11.
I left his spelling mistake in on that one.
I've worked on LV components for a long time. Yes, in theory this can be dangerous but he's talking about a 1.5v DC differential. He writes later:
"On the cartridge side, the stress is excessive heat dissipation"
Yes he's correct. Thing is that 1.5v of heat is minimal here. If this was an ultra compact design running in 1/5 the space there would be more concern but I'm betting it isn't here. Some Everdrives have been around and running for years without issues.
I'll give an example. I have a Gonbes GBS-8200. You're supposed to run this on the 5v rail of an arcade machine. I errantly hooked one into the 12v rail and ran it for an hour without realizing there was an issue. It was hot to the touch but was still outputting video. At more than 2x the voltage it still worked. I unplugged it, switched it to the 5v rail, plugged it back in, and it's been running since 2011.
Also, Krikzz replied here:
http://krikzz.com/forum/index.php?topic=6614.msg51195#msg51195