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Armandas 6, 1 23 This is standard and is shown in the SN datasheet:. The pinout is here:. Michael George 1, 8 34 You need to tie them to appropriate logic levels RBI should be ‘0’ if datasheeet want to display a zero.

Each segment on a 7-segment display is designated a letter A-G.

When I connect an input, the LEDs doesn’t form numbers but they light up randomly. Home Questions Tags Users Unanswered.

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You can use a diode tester or a simple voltage source and a resistor to determine the pinout of your particular display. I just want to know the right way to connect the output pins of to the pins of 7-segment display? Note that this datasheet illustration is a bit messed up and the bottom segment is D not Eand next segment clockwise lower left is E.


Danny Sebahar 9. I’ve connected a decoder to 7-segment dafasheet as shown in figure. Would you like to answer one of these unanswered questions instead?

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. How to connect decoder to 7-segment display? Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 77447n on this site the association bonus does not count.

Simply wire the respective letters a. Further, this really old chip saved a few transistors by not fully decoding inputs above 0x09, so 0x0A.

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Thank you for your interest in this question. This is standard and is shown in the SN datasheet: However, they don’t seem to mention that you need to have the inputs of daatasheet connected to something for it to work like you want it to.


Then just map the pins correctly again, from datasheet: The pinout is here: Then just map the pins correctly again, from datasheet:.

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’. Spehro Pefhany k 4 Like the other two most popular answers, your 7 segment display needs to be connected to the properly Outputs to Seven-segment display inputs: Pin 5 should go to GND. Here is a link to a video Datsheet made on instagram of mine working using this schematic: