This part is a kind of semiconductor called M30240.

Function of this product has SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER.

Manufacturers : Mitsubishi

Image and pinout :

Some of the text within the PDF file :

MITSUBISHI ELECTRONICS AMERICA, INC. PRELIMINARY M30240 M30240 Group Specification Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Features...1-3 Applications. 1-3 Pin Configuration 1-4 Block Diagram. 1-5 Performance outline 1-6 Pin Description 1-8 Overview ... 1-10 Operation of Functional Blocks . . . . . . . . . 1-11 Central Processing Unit (CPU) . 1-11 Processor Mode [ ... ]

M30240 PDF Datasheet Download