BUY UPD2819C https://www.utsource.net/itm/p/1727505.html
PHASE LOCKED LOOP FREQUENCY SYNTHESIZER CMOS LSI
Description: The UPD2819C is a single-chip 8-bit microcontroller with a CMOS technology. Features: - 8-bit CPU core with 8-bit data bus - On-chip ROM, RAM, and I/O ports - On-chip timer/counter and interrupt controller - On-chip serial I/O - On-chip A/D converter - On-chip power-on reset circuit - On-chip clock oscillator Applications: - Automotive control systems - Home appliances - Office automation - Factory automation - Industrial control systems - Measurement and instrumentation (For reference only)