This part is a kind of semiconductor called SAB80C535-16-N.

Function of this product has 8-Bit CMOS Single-Chip Microcontroller.

Manufacturers : Siemens Semiconductor Group

Image and pinout :

Some of the text within the PDF file :

Microcomputer Components 8-Bit CMOS Single-Chip Microcontroller SAB 80C515 / SAB 80C535 Data Sheet 02.96 High-Performance 8-Bit CMOS Single-Chip Microcontroller Preliminary SAB 80C515/80C515-16 SAB 80C535/80C535-16 q q q q q q q q SAB 80C515/80C535 CMOS microcontroller with factory mask-programmable ROM CMOS microcontroller for external ROM q q q q q q q q q q q 8 K × 8 ROM (SAB 80C515 only) 256 × 8 RAM Six 8-bit I/O ports, one input port for digital or analog input Three 16-bit timer/counters Highly flexible reload, capture, compare capabilities Full-duplex serial channel Twelve interrupt vectors, four priority levels 8-bit A/D converter with 8 multiplexed inputs and programmable internal reference voltages 16-bit watchdog timer Boolean processor Most instructions execute in 1 [ ... ]

SAB80C535-16-N PDF Datasheet Download