CMOS LSI No. 5485 LC665304A, 665306A, 665308A, 66.
Sanyo Semicon Device
LC665304A - Four-Bit Single-Chip Microcontrollers with 8/ 12/ and 16 KB of On-Chip ROM
CMOS LSI No. 5485 LC665304A, 665306A, 665308A, 665312A, 665316A Four-Bit Single-Chip Microcontrollers with 4, 6, 8, 12, and 16 KB of On-Chip ROM Pre.