BUY D8255AC-5 https://www.utsource.net/itm/p/958514.html
Peripheral Interface
Description: 8255A Programmable Peripheral Interface Features: 40-pin DIP package Compatible with the Intel 8255A Fully static operation Three 8-bit bidirectional ports Two 4-bit bidirectional ports Two 4-bit output ports Programmable modes of operation Interrupt logic Application: The 8255A Programmable Peripheral Interface is a general purpose programmable I/O device which can be used in a wide variety of applications. It can be used to interface with a variety of peripheral devices such as keyboards, printers, A/D and D/A converters, and other programmable I/O devices. (For reference only)