BUY N80C251SB-16 https://www.utsource.net/itm/p/626750.html
HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Description: N80C251SB-16 is an 8-bit microcontroller manufactured by NXP Semiconductors. It is a PLCC (Plastic Leaded Chip Carrier) package with 16 pins. Features: 8-bit microcontroller 16KB of on-chip program memory 2KB of on-chip RAM On-chip oscillator On-chip timer On-chip serial port On-chip interrupt controller On-chip power-on reset circuit Low power consumption Applications: Automotive control systems Industrial control systems Home appliances Security systems Robotics (For reference only)