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Danny Sebahar 9. Pin 5 should go to GND. This is standard and is shown in the SN datasheet: Simply wire the respective letters a. Armandas 6, 1 23 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. When I connect an input, the LEDs doesn’t form numbers but they light up randomly. I’ve connected a decoder to 7-segment display as shown in figure.
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Home Questions Tags Users Unanswered. Because it has attracted low-quality or spam answers that had datashheet be removed, posting an answer now requires 10 reputation on this daatasheet the association bonus does not count.
You need to tie them to appropriate logic levels RBI should be ‘0’ if you want to display a zero. Then just map the pins correctly again, from datasheet:. Then just map the pins dattasheet again, from datasheet: The pinout is here: This is standard and is shown in the SN datasheet:.
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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 E datasheett, and next segment clockwise lower left is E. Like the other two most popular answers, your 7 segment display needs to be connected to the properly Outputs to Seven-segment display inputs: Spehro Pefhany k 4 The pinout is here:.
How to connect decoder to 7-segment display? Thank you for your interest in this question.
Would you like to answer one of these unanswered questions instead? 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.
Further, this really old chip saved a few transistors by not fully decoding inputs above 0x09, so 0x0A.