Pune Vidyarthi Griha’s

COLLEGE OF ENGINEERING, NASHIK – 3.

“ Flip Flops ”

By

Prof. Anand N. Gharu (Assistant Professor)

PVGCOE Computer Dept.

30th June 2017 .

CONTENTS :-

1. Combination Circuit & Sequential Circuit

2. S – R Flip Flop

3. J – K Flip Flop

4. D Flip Flop

5. T Flip Flop

6. Preset and Clear

7. Master & Slave Flip Flop

8. Truth Table & Excitation Table

9. Conversion from 1-Type of Flip Flop to Another

Flip Flop

Clock Signal

Sequential Vs Combinational

1 – Bit Memory Cell

Latch

S – R Latch Using Nor Gate

Symbol and truth table of S-R latch

Race Condition

Triggering Method

Concept of Triggering

S-R Flip Flop

D – Flip Flop

J – K Flip Flop

T Flip Flop

Master Slave JK Flip-Flop

Preset & Clear with JK

Excitation Table

Excitation table for SR FF

Difference between both….?

Latches..

Latches are the building

blocks of sequential circuits.

latches can be built from

gates.

latch does not have a clock

signal.

Flip Flop..

flip-flops are also the building

blocks of sequential circuits.

Flip-flops can be built from

latches.

A flip-flop always has a clock

Signal

Both are same but there is a little difference between both.

Thank You

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