Hexadecimal Number Conversion Practice Problems
By Patrick Hoppe
In this learning activity you'll practice converting between hexadecimal and decimal and between hexadecimal and binary numbers.
The Speed-Power Product
Learners examine how to multiply the gate propagation delay by the gate power dissipation to find the speed-power product. Examples are shown.
Karnaugh Maps
Learners examine the Karnaugh map for a three-variable system. Several examples are given.
Hexadecimal Numbering System
In this learning activity you'll review the hexadecimal numbering system.
Digital Circuit Devices
By Terry Bartelt
The two types of digital devices, logic gates and flip-flops, and the types of basic operations they perform are presented.
The MOD 10 Counter
The technique for designing a MOD 10 counter is introduced. Asynchronous inputs of a JK flip-flop are used to clear the counter.
Digital-to-Analog Converters
In this animated activity, learners examine how an electronic converter changes digital signals to analog signals. Sections of a synthesizer are identified, and the operation of a D/A converter is demonstrated.
Synchronous & Asynchronous Inputs on a JK Flip-Flop
Students examine the operation of synchronous and asynchronous inputs on a JK Flip-Flop.
Power Dissipation
Students look at the power dissipated by a single gate and by an IC. The concept of average current draw is introduced and examples are provided.
The 4-Input Truth Table
In this learning activity you'll practice using the 4-input truth table.
Boolean Theorems (Single Variable)
Students analyze the eight single variable Boolean theorems and their expressions.
Multiplexers
In this animated object, learners examine the operation of a multiplexer and the function of the data input and selector lines. A brief quiz completes the activity.
The MOD Number
Learners read how to calculate the MOD number and how it is used.
Analog and Digital Converters
In this learning activity you'll examine how electronic converters convert between analog voltages and proportional digital signals.
The JK Flip-Flop
In this animated activity, learners view the input and output leads of a JK flip-flop. They also see how it functions in each mode of operation. A brief quiz completes the learning object.
Serial-In Serial-Out Shift Register
In this animated activity, students view the operation of a 4-bit serial-in serial-out register. A brief quiz completes the learning object.
NAND Gates
In this learning activity you'll explore the operation of a NAND gate using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.
Building a Binary Counter with a JK Flip-Flop
In this animated activity, learners examine the construction of a binary counter using a JK flip-flop. The ability of the JK flip-flop to "toggle" Q is also viewed.
Cascading Magnitude Comparators
Learners read an explanation of how to connect two 7485 ICs to compare binary numbers by creating an 8-bit comparator. Diagrams and charts are presented.
Exclusive-OR Gates
In this learning activity you'll explore how an Exclusive-OR gate operates by using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.
A Sample Exam for Digital Electronics
Students answer 10 questions in a sample exam. This exercise covers number systems, number conversion, logic gates, and combinational design. Feedback is provided.
Logic State Signals
In this learning activity you'll identify the voltage levels produced or recognized by digital logic devices as valid or invalid logic state signals.
The Universal NOR Gate
Learners read how the NOR gate can be configured to obtain the other common logic gates. Schematics and Boolean expressions demonstrate how the AND, OR, and Hex Inverter functions are achieved through the use of only NOR gates
A Drill for Converting Binary Numbers to Decimal Numbers
By John Rosz
Students test their skill at converting binary numbers to decimal numbers. Immediate feedback is provided.
Binary to Decimal Number Conversion
In this learning activity you'll practice calculating the between the binary number system and the decimal number system.