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EPROM erasing using an LED - 2023

Is it possible to erase an EPROM using an ordinary UV-A LED?



It might take a while, but it does work. It took about 24 hours for a single 5050 smd UV-A LED at 50mA to completely erase 128kB M27C1001 EPROM memory. The first bits became erased after about 12 hours.