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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The pinout is here:. You need to tie them to appropriate logic levels RBI should be ‘0’ if you want to display a zero. You can use a diode tester or a simple voltage dztasheet and a resistor to determine the pinout of your particular display.

SN54/74LS47 Motorola BCD TO 7-SEGMENT DECODER / DRIVER ChipFind Datasheet Archive |

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. Then just map the pins correctly again, from datasheet: The pinout is here: Armandas 6, 1 23 Note that this datasheet illustration is a bit messed up and the bottom segment is D dfcodificador Eand next segment clockwise lower left is E. Spehro Pefhany k 4 Here is a link to a video I made on instagram of datasbeet working using this schematic: 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’.

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When I connect an input, the LEDs doesn’t form numbers but they light up randomly. 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. Pin 5 should go to GND. Thank you for your interest in this question. decodifidador

Datasheet «SN54/74LS47»

Danny Sebahar 9. Would you like to answer one of these unanswered questions instead?

This is standard and is shown in the SN datasheet: Simply wire the respective letters a. Like the other two most popular answers, datashset 7 segment display needs to be connected to the properly Outputs to Seven-segment display inputs: This is standard and is shown in the SN datasheet:.

Michael George 1, 8 34 Home Questions Tags Users Unanswered. I’ve connected a decoder to 7-segment display as shown in figure. How to connect decoder to 7-segment display?

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. I just want to know the right way to connect the output pins of to the pins of 7-segment display? Then just map the pins correctly again, from datasheet:. Each segment on a 7-segment display is designated a letter A-G. Further, this really old chip saved a few transistors by not fully decoding inputs above 0x09, so 0x0A.

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