SN74LS47N. SN74LS47NSR. ACTIVE. SO. NS. Green (RoHS. & no Sb /Br). CU NIPDAU. LevelC-UNLIM. 0 to 74LS SNJAJ. ACTIVE. 74LS47 component details, pinout & Datasheet. 74LS47 is a BCD to 7-segment decoder/driver IC & It accepts a binary coded decimal as input and converts it. 74LS47 datasheet, 74LS47 pdf, 74LS47 data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, BCD to 7-Segment Decoder/Driver with Open-Collector .
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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: 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.
SN54/74LS47 Motorola BCD TO 7-SEGMENT DECODER / DRIVER ChipFind Datasheet Archive |
I just want to know the right way to connect the output pins of to the pins of 7-segment display? Michael George 1, 8 34 Thank you for your interest datashfet this question. This is standard and is shown in the SN datasheet: Armandas 6, 1 23 Then just map the pins correctly again, from datasheet:.
Then just map the pins correctly again, from 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. Would you like to answer one of these unanswered questions instead? Spehro Pefhany k 4 Home Questions Tags 74lw47 Unanswered. Danny Sebahar 9.
Note that this is an ancient display and an ancient TTL chip both are museum old and because it’s TTL dcodificador inputs will read as ‘high’. How to connect decoder to 7-segment display?
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 the connected to something for it to work like you want it to. The pinout is here: 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 74ks47 and the bottom segment is D not Eand next segment clockwise lower left is E.
DECODIFICADOR Y by Johan Andrade on Prezi
When I connect an input, the LEDs doesn’t form numbers but they light up randomly. You need to tie them to appropriate logic levels RBI should be ‘0’ if you want to display a zero. Each segment on a 7-segment display is designated a letter A-G. Simply wire the respective letters a.
Pin 5 should go to GND. I’ve connected a decoder to 7-segment display as shown in figure.