BUY TMS9901NL-40 https://www.utsource.net/itm/p/1744177.html
programmable system interface
The TMS9901NL-40 is a programmable peripheral interface integrated circuit (IC) manufactured by Texas Instruments. It is a 40-pin DIP (dual in-line package) device that provides a variety of I/O functions, including interrupt control, timer/counter, and programmable I/O port. Description: The TMS9901NL-40 is a programmable peripheral interface IC designed to provide a variety of I/O functions. It contains an 8-bit I/O port, a 4-bit timer/counter, and an interrupt control circuit. It is designed to be used in conjunction with a microprocessor system to provide additional I/O and timer/counter functions. Features: 8-bit I/O port 4-bit timer/counter Interrupt control circuit Programmable I/O port Low power consumption 40-pin DIP package Applications: The TMS9901NL-40 is suitable for use in a variety of applications, including: Automotive systems Industrial control systems Robotics Medical equipment Security systems Home automation systems (For reference only)