I was looking on www.macronix.com at their selection helper. MX 25L (means 3V, serial Flash), 32 (means 32MB density), 05 (STDsingle I/O), O (this letter is the generation of the chip - they showed an E), M (package = SOP), I (industrial tem range -40C to 85C), - 12 (85/MHz/86MHz), G (RoHS compliant). I believe this is the chip I have but will continue to look for a better magnifier.