BUY UPD8243HC https://www.utsource.net/itm/p/1395144.html
HIGH-PERFORMANCE PROGRAMMABLE DMA CONTROLLER
The UPD8243HC is a high-speed CMOS 8-bit bidirectional I/O port manufactured by NEC. It is a 24-pin DIP package. Description: The UPD8243HC is a high-speed CMOS 8-bit bidirectional I/O port. It has an 8-bit bidirectional data bus and a 3-bit address bus. It also has a chip select input, a write enable input, a read enable input, and an output enable input. The device features high-speed operation and low power consumption. Features: High-speed operation Low power consumption 8-bit bidirectional data bus 3-bit address bus Chip select input Write enable input Read enable input Output enable input Applications: The UPD8243HC is suitable for use in a variety of applications, including industrial automation, consumer electronics, and automotive systems. It can be used to interface with a variety of devices, such as sensors, actuators, and displays. (For reference only)