Explore programmable logic devices in this digital circuits lecture, focusing on PALs and CPLDs. Learn about implementing designs, Programmable Logic Arrays (PLAs), Complex Programmable Logic Devices (CPLDs), and Field Programmable Gate Arrays (FPGAs). Discover the Bora digital trainer board and its binary explorer capabilities. Examine the XC9536XL CPLD specifications and XC9500XL architecture. Follow the step-by-step process of using programmable logic and understand the various design entry options available. Note that while there are a few typos in the slides, corrections can be found in the slide pack on the website www.newae.com/teaching.