Short of using microcontrollers or just discrete parts, the same function can also be obtained by less specialized chips such as the 74LS123. Here's an applicat

Short of using microcontrollers or just discrete parts, the same function can also be obtained by less specialized chips such as the 74LS123. Here's an application schematic from Elektor. https://www.worldradiohistory.com/hd2/IDX-UK/Technology/Technology-Modern/Archive-Elektor-IDX/IDX/80s/Elektor-1985-07-08-OCR-Page-0083.pdf https://www.worldradiohistory.com/hd2/IDX-UK/Technology/Tech...