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I’ve connected a decoder to 7-segment display as shown in figure. This is standard and is shown in the SN datasheet:.
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Then just datashfet the pins correctly again, from datasheet: Thank you for your interest in this question. How to connect decoder to 7-segment display?
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Further, datasheey really old chip saved a few transistors by not fully decoding inputs above 0x09, so 0x0A. Simply wire the respective letters a.
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site the association bonus does not count. Each segment on a 7-segment display is designated a letter A-G.
Note that this is an ancient display and an ancient TTL chip both are museum old and because it’s TTL open inputs will read as ‘high’. You can use a diode tester or a simple voltage source and a resistor to determine the pinout of your particular display.
Adtasheet I connect an input, the LEDs doesn’t form numbers but they light up randomly.
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Spehro Pefhany k 4 This is standard and is shown in the SN datasheet: Like the other two most popular answers, your 7 segment display needs to be connected to the properly Outputs to Seven-segment display inputs: Note that this datasheet illustration is a bit messed up and the bottom segment is D not Eand satasheet segment clockwise lower left is E.
However, they don’t seem to mention that you need to have the inputs of the connected to something for it to work like dataheet want it to.
Danny Sebahar 9. Michael George 1, 8 34 Here is a link to a video I made on instagram of mine working using daatasheet schematic: The pinout is here: Armandas 6, 1 23 The pinout is here:. Then just map the pins correctly again, from datasheet:.
You need to tie them to appropriate logic levels RBI should be ‘0’ if you want to display a zero. Pin 5 should go to GND.