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chrisalviola
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is it possible to connect 2x 7447 IC's and 2x 7 segment and input binary 0-15?
Hi Chris-chrisalviola said:is it possible to connect 2x 7447 IC's and 2x 7 segment and input binary 0-15?
vk6kro said:@vk6kro
the decoder i have now is only 7447 ic so i have to make use of this.
If you can't make use of any other ICs, then I don't think you can do that.
The second digit would always be a 1 or a 0, but the 7447 output on the right hand digit would be garbage for numbers greater than 9. It makes a series of letter "C"s oriented in different directions.
If you can make use of any other IC's you should throw out the 7447s and use a suitable chip. These chips are very cheap.
It is a simple job with a microprocessor and cost effective as well. You could have 8 bit binary pretty easily decoded to 3 displays.
Is this a school assignment?
The 2x 74LS47 is a BCD-to-7-segment decoder/driver IC, which means it can convert binary-coded decimal (BCD) input into a 7-segment display output. By using two of these ICs, we can input binary numbers from 0-15 and display them on a 7-segment display.
Using two 74LS47 ICs allows us to input a wider range of binary numbers (0-15) compared to a single IC, which can only handle numbers from 0-9. This makes it more versatile and suitable for different applications.
No, the 2x 74LS47 is designed to work with binary numbers from 0-15. If you need to input higher numbers, you can use additional ICs or look for other alternatives that can handle a wider range of inputs.
The 2x 74LS47 has four input pins (A, B, C, and D) that correspond to the four binary digits of the input. These pins should be connected to the corresponding pins on the 7-segment display. Additionally, the IC has seven output pins (a, b, c, d, e, f, g) that control the segments of the display. These pins should be connected to the corresponding segments of the display.
Yes, it is important to follow the manufacturer's datasheet and ensure that the IC is properly powered and grounded. It is also recommended to use a pull-up resistor on the input pins to prevent any floating inputs. Additionally, make sure that the input and output pins are connected correctly to avoid any malfunctioning.