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This is standard and is shown in the SN datasheet: 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. You can use a diode tester or a simple voltage source and a resistor to determine the pinout of your particular display.

Michael George 1, 8 34 Would you like to answer one of these unanswered questions instead? Simply wire the respective datawheet a.

I just want to know the right way to connect the output pins of to the pins of 7-segment display? The pinout is here:. This is standard and is shown in the SN datasheet:.


Then just map the pins correctly again, from datasheet: Each segment on a 7-segment display is designated a letter A-G. Thank you for your interest in this question. Pin 5 should go to GND.

When I connect an input, the LEDs doesn’t form numbers but they light up randomly. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policy datazheet, and our Terms of Service. Then just map the pins correctly again, from datasheet:.

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Here is a link to a video I made on instagram of mine working using this schematic: How to connect decoder to 7-segment 7447 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.

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Further, this really old chip saved a few transistors by not fully decoding inputs above 0x09, so 0x0A. 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 datashwet to tie them to appropriate logic levels RBI should be ‘0’ if you want to display a zero.


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Like datashee other two most popular answers, your 7 segment display needs to be connected to the properly Outputs to Seven-segment display datasehet However, they don’t seem to mention that you need to have the inputs of the connected to something for it to work like you want it to. Danny Sebahar 9. I’ve connected a decoder to 7-segment display as shown in figure.

Armandas 6, 1 23 The pinout is here: Spehro Pefhany k 4