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I just want to know the 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.
How to connect decoder to 7-segment display?
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Each segment on a 7-segment display is designated a letter A-G. Would you like to answer one of these unanswered questions instead?
You need to tie them to appropriate logic levels RBI should be ‘0’ if you want to display a zero. Home Questions Tags Users Unanswered.
SN Datasheet(PDF) – TI store
Simply wire the respective letters a. Danny Sebahar 9.
You can use a diode tester or a simple voltage source and a resistor to determine the pinout of your particular display. This is standard and is shown eatasheet the SN datasheet:. Spehro Pefhany k 4 Then just map the pins correctly again, from datasheet:.
When I connect an input, the LEDs doesn’t form numbers but they light up randomly. 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.
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. Armandas 6, 1 23 Note that this datasheet illustration is a bit messed up and the bottom segment is D not Eand next segment clockwise lower left is 7474n.
Multisim and Ultiboard
The pinout is here:. Here is a link to a video I made on instagram of mine working using this schematic: Michael George 1, 8 34 I’ve connected a decoder to 7-segment display as shown in figure.
This is standard and is shown in the SN 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’.