Cant make 7segment display run using 74LS47 IC

  • Thread starter Thread starter chrisalviola
  • Start date Start date
  • Tags Tags
    Ic
Click For Summary
A 7-segment display will not function correctly with a 74LS47 IC without proper connections and components. The user has connected the display to the correct pins but is not seeing any output when inputting binary values. It is essential to include current limiting resistors, typically around 330 ohms, for each segment to prevent damage and ensure proper operation. Additionally, the blanking input (pin 5) should be tied high to enable the display. Proper wiring and component usage are crucial for the display to function as intended.
chrisalviola
Messages
80
Reaction score
0
would a 7 segment display show numbers if you only use a 74LS47 ic only?
i connected it all the pins right according to the schematics
7447.gif


the 7 segment display is connected right in pins 15-9 in 7447 ic and the pins 7,1,2 & 6 i used as 4 bit binary input, so when i input 0101 which is 5 no light come out from the 7 segment, is there anything wrong in my connections?
 
Engineering news on Phys.org
Last edited by a moderator:
What mathematics software should engineering students use? Is it correct that much of the engineering industry relies on MATLAB, making it the tool many graduates will encounter in professional settings? How does SageMath compare? It is a free package that supports both numerical and symbolic computation and can be installed on various platforms. Could it become more widely used because it is freely available? I am an academic who has taught engineering mathematics, and taught the...

Similar threads

  • · Replies 8 ·
Replies
8
Views
5K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 9 ·
Replies
9
Views
7K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 10 ·
Replies
10
Views
8K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 6 ·
Replies
6
Views
4K