BUY UPD71055C-10 https://www.utsource.net/itm/p/329618.html
Parallel Interface Unit
The UPD71055C-10 is a microcontroller manufactured by NEC. It is a 40-pin DIP package and is based on the 8051 microcontroller architecture. Description: The UPD71055C-10 is a single-chip 8-bit microcontroller that is designed for use in embedded applications. It has a 16-bit address bus and an 8-bit data bus. It has an on-chip ROM, RAM, and I/O ports. It also has an on-chip oscillator and a power-saving sleep mode. Features: 8-bit CPU with 16-bit address bus On-chip ROM, RAM, and I/O ports On-chip oscillator Power-saving sleep mode 40-pin DIP package Applications: The UPD71055C-10 is suitable for use in embedded applications such as industrial automation, consumer electronics, and automotive applications. It can be used to control motors, sensors, and other peripherals. (For reference only)