This part is a kind of semiconductor called M38039.

Function of this product has (M3803x / M3804x) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER.

Manufacturers : Mitsubishi Electric Semiconductor

Image and pinout :

Some of the text within the PDF file :

To all our customers Regarding the change of names mentioned in the document, such as Mitsubishi Electric and Mitsubishi XX, to Renesas Technology Corp. The semiconductor operations of Hitachi and Mitsubishi Electric were transferred to Renesas Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.) Accordingly, although Mitsubishi Electric, Mitsubishi Electric Corporation, Mitsubishi Semiconductors, and other Mitsubishi brand names are mentioned in the document, these names have in fact all been changed to Renesas Technology Corp. Thank you for your understanding. Except for our corporate trademark, logo and corporate statement, no changes whatsoever have been made t [ ... ]

M38039 PDF Datasheet Download