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LAB 5 & 6 - 5 bit Binary To Decimal

LAB 5 & 6 - 5 bit Binary To Decimal - CSE 2300W Lab...

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CSE 2300W: Lab 5 & 6 – Display 5 bit Binary Numbers in Decimal Section Number: 7 (Thursday 10am – 12pm) Name: Shayan Rizvi
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Objectives The purpose of this lab is to design a circuit that will convert and display a 5 bit binary number into a decimal number. This lab has three components to it. The first component is designing this type of circuit digitally on LogicWorks and display the 5 bit binary number as a decimal on a hexadecimal display. The second component is once again using LogicWorks to design the same type of digital circuit but this time around one has to utilize a MUX to get the same output on the hexadecimal display. The final component of this lab is to physically build the circuit which utilized the MUX onto the protoboard. Background The idea of converting a binary number to a decimal number is not new. We were asked to perform this kind of task in an earlier lab. The difference between the past lab and this current lab is that we were not asked to build it from scratch. In this lab we have to create the logic equations ourselves. Creating logic equations from scratch can be done by making use of both the truth table and Karnaugh maps (K-maps). Truth tables and K-maps are used hand in hand. A K-map is a graphical representation of a truth table. From a truth table once can deduce where the minterms are present by looking for the 1’s of each row in the output column (F). Then the K-map displays the 1’s (minterms) from the correct rows in a box format. From this K-map the 1’s (minterms) can be grouped in specific ways so one can create a logic equation for that specific output. Specifications This lab consisted of two different LogicWorks circuits and one physical circuit made on the protoboard. The two schematics made on LogicWorks each had different types of chips and parts that were utilized from the LogicWorks library. There were also some parts that were constant to each schematic. The parts that stayed constant were five binary switches that represented the inputs E, D, C, B, A going for the most significant bit (MSB) to the least significant bit (LSB) respectively. There were also five binary probes that were attached to each input (binary switch) for readability purposes (reading the binary number easily). Another thing constant to both schematics was the two hexadecimal displays and that ground that was attached to one of them. The hexadecimal displays were there so the binary number could be displayed in decimal form. In the schematic made for lab 5 only SSI chips were allowed to construct the digital circuit, all of the SSI chips available in our student kits have a representation in the LogicWorks library. The chips used were the 74LS04 which is the hex inverter and another chip that was prominently used was the 74LS08 which is the quad two input AND chip. One chip that is not present in the LogicWorks library is the 74LS32 which is the quad two input OR chip.
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LAB 5 & 6 - 5 bit Binary To Decimal - CSE 2300W Lab...

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