ELT 252 Digital Circuit Applications

Lecture Hours: 2
Lab Hours: 3
Credits: 3

Covers theory and emphasizes hands-on laboratory application of sequential digital logic circuits, which build upon the fundamentals of combinational digital logic developed in ELT 151. Includes flip-flops, counters, registers, encoders and decoders, and bus logic. Introduces memory devices, analog-to-digital and digital-to-analog converters (ADCs/DACs), and programmable logic devices. Promotes and supports sustainable and green technologies.

Prerequisite: ELT 151 with a grade of C or better; or consent of instructor.
Student Learning Outcomes:

Describe the major characteristics and differences among TTL, ECL, MOS and CMOS logic families.
Explain the difference between synchronous and asynchronous systems.
Construct and analyze the operation of flip-flops.
Differentiate between parallel and serial data transfers.
Compare and analyze the operation and characteristics of synchronous and asynchronous counters.
Analyze and use decoders and encoders in various types of circuit applications.
Describe and analyze the operation of multiplexers and demultiplexers in circuit applications.
Propose the theory of operation, advantages and disadvantages of several types of digital-to-analog converters (ADCs).
Describe the organization, operation and differences of various memory circuits such as read/write memory (RWM), read-only memory (ROM), static and dynamic random-access memory (RAM).
Explain the architecture of the basic types of programmable logic devices and determine the fuse pattern for a given set of logic functions.

Content Outline

Flip-Flops and Related Devices
- Gate Latches
- Clocked Flip-Flops
- Flip-Flop Applications
Counters and Registers
- Asynchronous Ripple Counters
- Synchronous Parallel Counters
- Shift Registers as Counters
- Counter Applications
Integrated-Circuit Logic Families
- TTL
  - Open collector
  - Totem pole
  - Tri-state
- CMOS
  - Characteristics
  - Tri-state
  - Transmission
- ECL
MSI Logic Circuit
- Decoders
- Encoders
- Multiplexers (Data Selectors)
- Demultiplexers (Data Selectors)
Converters
- Analog-to-digital
- Digital-to-Analog
Memory Devices
- Read-Only-Memories (ROMs)
- Random-Access-Memories (RAMs)
Relation to sustainable and green technologies