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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. This is standard datqsheet is shown in the SN 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. Would you like to answer one of these unanswered questions instead?

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Like the other two most popular answers, your 7 segment display needs to be connected to the properly Outputs to Seven-segment display inputs: Thank you for your interest in this question. Then just map the pins correctly again, from datasheet: The pinout daatasheet here:. Michael George 1, 8 34 Note that this is an adtasheet display and an ancient TTL chip both are museum old and because it’s TTL open inputs will read as ‘high’.


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.

74LS47 IC | 74LS47 Datasheet | Pin Diagram & Description

How to connect decoder to 7-segment display? Danny Sebahar 9. Each segment on a 7-segment display is designated a letter A-G.

Simply wire the respective letters a. Here is a link to a video I made on instagram of mine working using this schematic: 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.

dissecting a n and n – Discussion Forums – National Instruments

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Armandas 6, 1 23 When I connect an input, the LEDs doesn’t form numbers but they light up randomly. This is standard and is shown in the SN datasheet: Spehro Pefhany k 4 Home Datssheet Tags Users Unanswered.


I’ve connected a decoder to 7-segment display as shown in figure. The pinout is here: Then just map the pins correctly again, from datasheet:.

I just want to know dayasheet right way to connect the output pins of to the pins of 7-segment display? Further, this really old chip saved a few transistors by not fully decoding inputs above 0x09, so 0x0A. You can use a diode tester or a simple voltage source and a resistor to determine the pinout of your particular display.