This part is a kind of semiconductor called 78F0547.

Function of this product has UPD78F0547.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

User’s Manual 78K0/KF2 8-Bit Single-Chip Microcontrollers µPD78F0544 µPD78F0545 µPD78F0546 µPD78F0547 µPD78F0547D µPD78F0544(A) µPD78F0545(A) µPD78F0546(A) µPD78F0547(A) The µPD78F0547D has an on-chip debug function. 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 complaints concerning this product. Document No. U17397EJ4V0UD00 (4th edition) Date Published May 2006 NS CP(K) 2005 Printed in Japan [MEMO] 2 User’s Manual U17397EJ4V0UD NOTES FOR CMOS DEVICES 1 VOLTAGE APPLICATION WAVEFORM AT INPUT PIN Wavef [ ... ]

78F0547 PDF Datasheet Download