Design a sample counter, Computer Engineering

Assignment Help:

Let's design a synchronous BCD counter. A BCD counter follows a sequence of ten states and returns to 0 after count of 9. These counters are also known as decade counters. This type of counter is useful in display applications in which BCD is essential for conversion to a decimal readout. Figure demonstrates characteristic table for this counter.

1949_DESIGN A SAMPLE COUNTER.png

Figure: Characteristic table for decade counter

There are 4 flip-flop inputs for Decade counter it implies A, B, C, D.  The subsequent state of flip-flop is given in table. JA and KA denotes flip flop input corresponding to flip-flop-A.  Please note this counter need 4-flip-flops.

From this flip flop input equations are simplified by K-Maps as displayed in figure below.  Unused minterms from 1010 through 1111 are considered as don't care conditions.

1393_DESIGN A SAMPLE COUNTER1.png

Figure:  K-maps for Decade counter

So simplified input equation for BCD counter are as below:

700_DESIGN A SAMPLE COUNTER2.png

Logic circuit can be designed with 4 JK flip flops and 3 AND gates.

2096_DESIGN A SAMPLE COUNTER3.png

Figure: Logic Diagram for decade counter.


Related Discussions:- Design a sample counter

Explain how server form post-back works, Briefly explain how server form po...

Briefly explain how server form post-back works?  Post Back: The process in which a Web page sends data back to the similar page on the server. View State: View State is the m

Dhcp, how to set up dhcp

how to set up dhcp

How many methods used to control traffic flowing in-out, How many methods u...

How many methods used to control traffic flowing into and out of the network by firewall? Firewalls utilize one or more of three ways to control traffic flowing into and out of

Explain sequential sharing, Explain Sequential Sharing In this sharing ...

Explain Sequential Sharing In this sharing method, a file can be shared by just one program at a time, i.e. file accesses by P1 and P2 are spaced out over time. A lock field ca

Determine the two input of NOR gate if output will be low, The NOR gate out...

The NOR gate output will be low if the two inputs are ? Ans. Output is low if any of the input is high means input may be 01,10 or 11.

Design a 8 to 1 multiplexer using the fourvariable function, Design a 8 to ...

Design a 8 to 1 multiplexer by using the fourvariable function given by F(A, B, C, D) = ∑ m(0,1,3,4,8,9,15). Ans. Design of 8 to 1 Multiplexer: It is a four-variable function a

Building is into our operational processes, Building IS into our operationa...

Building IS into our operational processes - Information System Although information systems are becoming increasingly prevalent they are not always the correct solution to ev

Cg transformations, magnify a triangle a(0,0), b(1,1), c(5,2) twice its siz...

magnify a triangle a(0,0), b(1,1), c(5,2) twice its size hile keeping c as fix

What is the draw back of micro programmed control, What is the draw back of...

What is the draw back of micro programmed control? It leads to a slower operating speed because of the time it takes to fetch microinstructions from the control store.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd