Lab Report Number 2 - To be submitted by each group.
Part A -
Operating the 7490 counter.
a. What is the function of pins 2 and 3?
b. What happens when any of these pins (2 or 3) are raised to logic "1"?
c. What is the function of pins 6 and 7?
b. What happens when any of these pins (6 or 7) are raised to logic "1"?
e. What is the purpose of connecting pin 1 to pin 12?
f. What are the output pins?
Part B -
Operating the 7442 BCD-to-decimal decoder.
a. What are the input pins of the 7442?
b. How did you connect them to the 7490?
c. Describe the behavior of the LEDs connected to the outputs of the 7442?
Part C -
Operating the 7447 seven-segment decoder.
a. What are the input pins of the 7447?
b. How did you connect them to the 7490?
c. Describe the behavior of the LEDs connected to the outputs of the 7447?
Part D - General Observations.
If you were to describe the experiment to your 12-year old younger brother or sister, or to your mother, how would your description read?