One Digit BCD Display Using Counter & $7-$Segment Display Decoder

Objectives:

The purpose of project is to use the simulator to build a circuit that displays the decimal digits $\{0.$

$\mathrm{.}9)$ on a

$7-$segment display LED using a $4-$bit $7493$ counter.

Lab Components:

$7-$segment display LED

$7-$segment decoder $7447$

$4-$bit counter $7493$

Other components

Instructions:

In the experiment of the MOD$-16$ counter, disconnect the counter's four output bits from the LEDs.

Use the $4-$bit counter chip $7493$ to build the circuit shown below. Use $7493$ counter to count from $0$

$(0000)$ to $9(1001)$ and recycles.

A $7447$ is connected to a $7-$segment display LED through seven $220$ a resistors as was described in

the experiment of $7-$segment display. Pin numbers are given on the diagram below.

Connect the counter's four output bits $($labeled Q$0,$ Q$1,$ Q$2,$ Q$3$ in the diagram$).$to the $7447\text{'}$s four

input pins $($labeled A$0,$A$1,$A$2,$A$3$ in the diagram$)$ with Q$0$&A$0$ being the least significant bits.

Set the clock's frequency to $1$ or $2$ Hz so that changing decimal digits on the $7-$segment display LED

is visible.

If the input code for the $7447$ decoder is any value greater than $9(1001),$ this will result in an invalid

combination of segment signals.

o Solve this problem in order to make the counter to recycle to $0000($reset$)$ after counting to $9$

$(1001).$Explain the purpose of the experiment $,$ List the components used and why they are used and Procedures: Briefly explain how the circuit was built