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

Identify state as shifting register content to left by 1 bit, Shifting a re...

Shifting a register content to left by one bit position is equivalent to ? Ans. Multiplication by two is equivalent while shifting register content to left by one bit position.

Organisational inertia - obstacle to information system, Organisational Ine...

Organisational Inertia - Obstacle To Information System This is most easily understood as problems of change and culture. Like any change process technology led change will be

Define input-output interface, Define Input-Output Interface. I/O inter...

Define Input-Output Interface. I/O interface gives a method for transferring information among internal storage and external I/O devices

Explain e-brokerage, E-brokerage. An e-brokerage is an investment house...

E-brokerage. An e-brokerage is an investment house that permits you to buy and sell stocks and get investment information from its Web site.

What is central processing unit, What is Central Processing Unit Centra...

What is Central Processing Unit Central Processing Unit (CPU) performs all the arithmetic and logical calculations in a computer. The CPU is said to be the brain of the compute

Difference between relocatable and self relocatable programs, Difference be...

Difference between relocatable and self relocatable programs. A relocatable program is one which can be processed to relocate it to a selected area of memory. For illustratio

Explain in detail about the dynamic timing, Explain in detail about the Dyn...

Explain in detail about the Dynamic timing a. Design is simulated in full timing mode. b. Not all possibilities tested, as it is dependent on input test vectors. c. Simul

Different types of layers in tcp/ip protocol stack, What are the different ...

What are the different types of layers in TCP/IP protocol stack? Layers into the TCP/IP protocol architecture are as given below: • Application Layer, • Host-to-Host Tra

Constants - first-order logic, Constants - first-order logic: Constant...

Constants - first-order logic: Constants are things that is cannot be changed, like as england, black and barbara. So then they stand for one thing only, so that can be confu

What are superscalar processors, What are superscalar processors? Sever...

What are superscalar processors? Several instructions start implementation in the same clock cycle, and the processor is said to use multiple issue. Such processors are capable

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