BUY P8237A-5 https://www.utsource.net/itm/p/11541758.html

Description: The Intel P8237A-5 is a 40-pin DIP (Dual In-line Package) chip used for interfacing between a microprocessor and peripheral devices. Features: * 8-bit data bus * Programmable I/O * Supports up to 64K bytes of memory * Supports up to 8 peripheral devices Applications: The Intel P8237A-5 is used in many embedded systems, such as industrial control systems, robotics, and medical devices. It is also used in some older PCs and laptops. (For reference only)