2 seven segment decoder 5 points a seven segment decoder is typically
2 Seven Segment Decoder
A seven segment decoder is typically used to determine which light emitting diodes in a seven segment
display should illuminate to display a digit specified in binary coded decimal.
Logisim includes such a seven segment display that you will use in this question.
The decoder takes as input four binary bits, which we label in order from most
significant bit to least significant bit, A3 A2 A1 A0. The decoder produces as
output a pattern of 7 bits, S6 S5 S4 S3 S2 S1 SO, which specifies which seg-
ments should illuminate. The figure on the right shows the relationship between
the pins and the corresponding segments of the display. Note that there is an
8th pin, S7, which controls the decimal point and that we will not use in this
In this question, Instead of decoding BCD, your decoder should produce your
BID for binary bit patterns 0 through 8. (For example, if the input is 0, dis-
play the first digit of your ID. If the input is 1, diplay the second digit of your ID.)
You can produce any output (i.e., we don't care) for inputs of binary bit patterns
9 through 15. If your ID is 0123456789, your decoder should produce
exactly the patterns shown below. exactly the patterns shown below.
SO S1 S2 S3
S4 S5 S6 S7
1. Write out a truth table for your circuit and include this with your written answers.
2. Implement the 7 boolean functions in the provided logisim circuit file using only AND, OR and
NOT gates provided in the built in library (it is also OK to use NAND and NOR gates, and to negate
inputs on gates). You may use any solution you wish, but you may find it easiest to use a sum of
products approach, much like a PLA.
Create your solution in the provided circuit file, as it already has a set of inputs and outputs defined. These
input and output pins should not be moved so as to prevent the sub-circuit appearance from changing
(right-most tool bar button in logisim) as this is important for testing.
*The amount will be in form of wallet points that you can redeem to pay upto 10% of the price for any assignment. **Use of solution provided by us for unfair practice like cheating will result in action from our end which may include permanent termination of the defaulter’s account.Disclaimer:The website contains certain images which are not owned by the company/ website. Such images are used for indicative purposes only and is a third-party content. All credits go to its rightful owner including its copyright owner. It is also clarified that the use of any photograph on the website including the use of any photograph of any educational institute/ university is not intended to suggest any association, relationship, or sponsorship whatsoever between the company and the said educational institute/ university. Any such use is for representative purposes only and all intellectual property rights belong to the respective owners.