UPD78F0412 Overview
Do not use this product for mass production because its reliability cannot be guaranteed after the on-chip debug function has been used, due to issues with respect to the number of times the flash memory can be rewritten. NEC Electronics does not accept plaints concerning this product. If the input of the CMOS device stays in the area between VIL (MAX) and VIH (MIN) due to noise, etc., the device may malfunction.