EDN

Using an 8:1 Multiplexer to Implement a 4-input Logical Function

Now, the thing to remember is that we are using a CD4512 chip, whose truth table is shown below. The important thing to note here is that, in addition to the three multiplexer select controls, A, B, ...
EDN

Implementing and Converting Logic Circuits Using Only NAND or NOR Gates

This is going to be a column that’s divided into three sections. It’s based on a question that a student posed in the EEWeb forums, and he also sent it directly to yours truly. The core of this ...
Design-Reuse

Pipeline AES S-box Implementation Starting with Substitution Table

The SubByte transformation, carried out by S-box, is the most time consuming procedure in Advanced Encryption Standard (AES) algorithm. A look-up table is commonly used for SubByte transformation in ...
Design News

Implementing a 1-Digit BCD 8421 Adder, Part 2

In Part 1 of this two-part binary coded decimal (BCD) extravaganza, we introduced a bunch of bodacious concepts, including the binary (base-2) number system, binary logic, binary computers, and bits, ...