## ELET1215 - Digital Electronics 2

__ LECTURE NOTES__
Section 1 notes

Counters, Latches and Registers

The Bidirectional Shift Register

Comparison of synchronous and asynchronous counters

Waveforms for synchronous/asynchronous counters

Mealy and Moore Finite State Machines

General Model of an Asynchronous Sequential Circuit

VIDEOS for Section 1

Design procedure for synchronous 4-bit binary counter

Design procedure for asynchronous (ripple) counter

Division of binary nymbers using shifting

Section 2 notes

Analysizing Asynchronous FSM - Transition Table

Understanding Flow Tables

Stability

Races

Latches

Analysis of asynchronous circuits built with latches

Implementation with latches

VIDEOS for section 2

Find the Transition Table from the logic diagram

Finding races and cycles in transition table

Drawing race diagrams for a transition table

Drawing Total State Diagram for a Transition Table

ANOTHER longer video - showing how to draw Total State Diagrams and Race Diagrams for Transition Table

Using Latches to construct Asychronous Sequential Devices

Reduction of the Primitive Flow table

Assigning outputs to unstable states

Race Free State Assignment

Clocks and Schmitt Trigger

The Binary Weighted DAC

The R/2R Ladder DAC

The Tracking (Ramp or Staircase) ADC

The Flash ADC

ELET1215 Homepage

### © copyright 2016 Stephen E. Mendes, Barbados.