Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Free Tools

Explore our collection of AI-powered tools designed to boost your productivity.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing Schools Business

Features Free Tools Pricing Schools Business

5 Questions

0 Views

Logic Circuit: SR Latch

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main purpose of an SR latch in digital circuits?

To amplify signals

To store memory (correct)

To convert analog signals to digital

To perform arithmetic operations

Output Q and output $ar{Q}$ of an SR latch are the same.

False (B)

How many NAND gates are used in a typical SR latch circuit?

Two

In an SR latch, the input lines are labeled as S and ______.

<p>R</p> Signup and view all the answers

Match the components of an SR latch with their functions:

<p>NAND Gate 1 = Outputs Q NAND Gate 2 = Outputs $ar{Q}$ Input S = Set state to 1 Input R = Reset state to 0</p> Signup and view all the answers

Flashcards

SR Latch

A circuit that stores a binary value (0 or 1) and holds it until an input signal changes its state.

S (Set) Input

Input that 'sets' the output Q to 1 and output Qbar to 0.

R (Reset) Input

Input that 'resets' the output Q to 0 and output Qbar to 1.

Complementary Outputs (Q and Qbar)

The outputs of the circuit are always opposites. If Q is 1, then Qbar is 0, and vice versa.

Signup and view all the flashcards

Cross-Coupled NAND Gates

The configuration of NAND gates where the output of one gate is connected to the input of the other, creating a feedback loop. This allows the latch to maintain its state.

Signup and view all the flashcards

Study Notes

Logic Circuit: SR Latch

The circuit uses two NAND gates to create a set-reset (SR) latch.
Input signals 'S' and 'R' control the latch's state.
'S' stands for set, while 'R' represents reset.
Output signals 'Q' and 'Q̅' (not Q) are the latch's outputs.
The circuit design features a cross-connected feedback loop formed by the NAND gates' outputs feeding their inputs.
This feedback loop produces the latch's bistable characteristic.
When S = 1 and R = 0, the output Q is 1 (set).
If S = 0 and R = 1, the output Q is 0 (reset).
The SR latch can be in a stable state only in two situations.
These states are 10 (Q=1) and 01 (Q=0).
Any other combination of S and R would transition the output resulting in an indeterminate state of the latch.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz explores the design and functionality of the SR latch using NAND gates. It examines how the input signals 'S' and 'R' influence the latch's output states and the concept of bistability in digital circuits. Understanding these principles is crucial for mastering basic logic circuit designs.