I have been using flash and EEproms for various projects, but if speed <200ns is not a issue then I could save $$$ , and recycle some uveprom... at first thought seems a good idea, as i have a bag or various sizes , the drawback is the erasing , I had a eraser , but the bulb gave up the ghost years ago and the unit was from the 70's. Last week found a simple and cheap solution (YT link), a small hand held UVC lamp. says 260nm wavelength .there is no timer, the switch is held on for 3 sec, then pushed again for off.
I was a little skeptical , but a test today , worked fine , a 27C64 covered by the lamp for 10 minutes worked fine , the unit shown runs from a usb supply or 4 AAA batteries, draws about 300ma. Care has to be taken where the UV light is shone not into eyes or to skin . for that reason I will make a box for it , it will cover 2 x 28 or 2 x 32 pin devices and they fit perfectly against the UV light source .
I was a little skeptical , but a test today , worked fine , a 27C64 covered by the lamp for 10 minutes worked fine , the unit shown runs from a usb supply or 4 AAA batteries, draws about 300ma. Care has to be taken where the UV light is shone not into eyes or to skin . for that reason I will make a box for it , it will cover 2 x 28 or 2 x 32 pin devices and they fit perfectly against the UV light source .