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

Illustrate the text area, specifies a form field where user can enter large...

specifies a form field where user can enter large amounts of text. In most respects, works like an field. It can have a name as well as a def

Explain the working of a 1-to-16 Demultiplexer, Using a suitable logic diag...

Using a suitable logic diagram explain the working of a 1-to-16 de multiplexer. Ans. 1-to-16 Demultiplexer Working: A demultiplexer obtains in data from one line and directs this

Facsimile , FACSIMILE : This is often known as 'fax' and it represents the...

FACSIMILE : This is often known as 'fax' and it represents the interface between reprographic and computer technology. By using fax, the contents of a sheet of paper (text or illu

How do you recognize the performance bottlenecks, Performance Bottlenecks c...

Performance Bottlenecks can be identified by using monitors. These monitors might be application server monitors, database server monitors, web server monitors and network monitors

Define in brief about the database management systems, Define in brief abou...

Define in brief about the Database Management Systems Databases (Database Management Systems - DBMS) Databases are used to organise and collect information. Most databas

Determine the define byte - assembler directives, Determine the Define Byte...

Determine the Define Byte - Assembler directives DB (Define Byte): DB directive defines a byte-type variable (i.e. a variable that occupies one byte of memory space). In a give

Find out how many words can be formed from daughter, Find out how many word...

Find out how many words can be formed out of the letters of the word DAUGHTER such that (i)  The vowels are all time together. (ii)  The vowels occupy even places.   Ans:

When will the current screen processing terminates, When will the current s...

When will the current screen processing terminates? A current screen processing terminates when control reaches either a Leave-screen or the end of PAI.

Eequivalences rules, Eequivalences rules: This conveys a meaning that ...

Eequivalences rules: This conveys a meaning that is actually much simpler so than you would think on first inspection.  Hence we can justify this, by using the following ch

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