Ordering number : ENN*5539 CMOS IC LC866020/16/1.
Sanyo
LC866008C - (LC8660xx) 8-bit single chip microcontroller
Ordering number : ENN*5539 CMOS IC LC866020/16/12/08C 8-Bit Single Chip Microcontroller with On-Chip 20/16/12/08K-Byte ROM and 384-Byte RAM Prelimin.