This part is a kind of semiconductor called 7512.
Function of this product has SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER.
Manufacturers : Renesas
Image and pinout :

Some of the text within the PDF file :
7512 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER REJ03B0122-0101 Rev.1.01 Feb 18, 2005 DESCRIPTION The 7512 Group is the 8-bit microcomputer based on the 740 family core technology. The 7512 Group is designed for battery-pack and includes serial interface functions, 8-bit timer, A/D converter, current integrator and I2C-BUS interface. FEATURES qBasic machine-language instructions .. 71 qMinimum instruction execution time .. 1.0 µs (at 4 MHz oscillation frequency) qMemory size Flash memory .. 36 K to 52 Kbytes RAM ... 1.0 K to 1.5 Kbytes qProgrammable input/output ports 3 [ ... ]
7512 PDF Datasheet Download
