iJournals: International Journal of Software & Hardware Research in Engineering (IJSHRE) ISSN-2347-4890 Volume 9 Issue 6 June 2021 Nam van Bach, Volume 9 Issue 6, pp 29-34, June 2021 Design a multi-purpose practice table for the digital electronics subject Author: Nam van Bach Thai Nguyen University of Technology bachvannam@tnut.edu.vn ABSTRACT In this article, the author is going to present the steps to design a multi-purpose practice table for the digital electronics subject, this practice table is used for students to practice the contents of the digital electronic subject. Besides, the author also introduces the exercises written on this practice table. With each exercise, students will complete the steps to design a digital electronic circuit, including Ideation, state table, write and minimization Karnaugh map, writing state equations and building Build electronic circuits from logic elements and design real circuits on the practice table. Keywords: Multi board, Digital electronic engineering, IC logic, Logic elements, Digital electronics practice. 1. INTRODUCTION Digital electronics engineering is one of the compulsory subjects for all students in the electrical, electronics majors. This course is an introduction to counters; Boolean algebra; minimalist technique; basic logic gates; design techniques for sequential and combinational logic circuits, that knowledge is the basis for representing problems in fact into simple logic functions and implementing problems based on logic gates, based on hardware descriptions language. This course also introduces how to design some common combinational logic circuits in practice such as arithmetic logic circuits, encoders, decoders, demux circuits, mux circuits, counters, shift registers, memory. Besides, the course also introduces AD/DA conversion methods to provide methods to solve electronic problems in both analog and digital directions [1-4]. In parallel with learning theory, the subject of digital electronics also requires students to practice designing logic circuits according to the given requirements using logic ICs. One of the simple methods to be able to practice logic circuit design is to use logic ICs in combination with test boards [5]. This option is simple and cheap, but it cannot be used in practice with many ICs because of the large number of wires connected, and the difficulty to test the circuit. Fig 1: Practice designing logic circuits using Board test To increase professionalism and make practice easier, people design practice tables containing logic ICs, then students will practice on these practice tables [6], [7]. However, the practice tables are very simple, few logic ICs and not many varieties. Therefore, it is necessary to design a practice table that contains all the logic ICs in the digital electronic engineering subject, a