Since most of the questions here are quite intelligent, let me ask a stupid one.
I've been working with electronics for ...50 years at least, yet still managed to blow up a Teensy by applying 12 volts to a digital input, D15, during a rewire.
Question: Would current be able to propagate OUT of the chip (Teensy 3.2) simultaneous with the 12v application, damaging other outside connections? I'm thinking the small pcb tracks inside the chip should blow so fast that there wouldn't be time enough to damage anything outside of the chip. I ask because after I replaced the chip the display it is attached to is not diplaying properly, using a known good program. (I don't know about the quality of the replacement Teensy: it has been used before).
For your enjoyment I'm submitting a photo of the damaged part.
I've been working with electronics for ...50 years at least, yet still managed to blow up a Teensy by applying 12 volts to a digital input, D15, during a rewire.
Question: Would current be able to propagate OUT of the chip (Teensy 3.2) simultaneous with the 12v application, damaging other outside connections? I'm thinking the small pcb tracks inside the chip should blow so fast that there wouldn't be time enough to damage anything outside of the chip. I ask because after I replaced the chip the display it is attached to is not diplaying properly, using a known good program. (I don't know about the quality of the replacement Teensy: it has been used before).
For your enjoyment I'm submitting a photo of the damaged part.