Digital Electronics at PIET Topic: Flip Flop

Presentation

Presented By: o Waheed Ahmad Shakir(148) o Usama Younas(124)o Ahmad Ali(166)

Introduction:In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information. The circuit can be made to change state by signals applied to one or more control inputs and will have one or two outputs[1]•  This Traffic light circuit

uses IC555 as Astable Multivibrator for rapid squire wave pulse generation. This clock pulse is feed to IC 4017 which is a Counter IC.

• An RS flipflop is used in 555 timer.

Circuit Diagram:

[8]

555 Timer :

RS Flip-flop

Applications:

•Counters.[3]•Registers•RAM•Frequency Division[3]•Data storage[3]•Data transfor[3]

Refrences:1) https://en.wikipedia.org/wiki/Flip-flop_(electronics)2) http://rookieelectronics.com/sequential-traffic-lights/3) http://www.daenotes.com/electronics/digital-electronics/applicati

ons-of-flip-flops4) http://www.engineersgarage.com/electronic-circuits/

understanding-decade-counter-cd40175) https://himueeepstu.wordpress.com/2013/01/10/automatic-traffic

-controll/

6) http://osp.mans.edu.eg/cs212/FF_Applications.htm