I have a two digit 7-seg LED module. Ten pins, so I presume it is 2*BCD + power. Only markings are ELT-D4014AW on the side and on the pcb (visible through the epoxy fill) 4201E/F and SB (or S8).
Any clues as to pinout?
I have a two digit 7-seg LED module. Ten pins, so I presume it is 2*BCD + power. Only markings are ELT-D4014AW on the side and on the pcb (visible through the epoxy fill) 4201E/F and SB (or S8).
Any clues as to pinout?
I should have added that I have googled for the full part number as well as bits of it, but no hits relevant to the part.
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Could be 7 segments + decimal point + 2 kathodes/anodes, I haven't seen them having decoders built-in. It's easy to find out with multimeter.
Tom
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Most likely that. I have seen them with decoders in though
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Yep, most likely that. Most likely not a decoder one with 10 pins. Can you see the common track through the epoxy?
Here is the pinout for a SIL version:
Dave :)
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7segs x 2 digits, total 10 pins. Nope, it has to be iether muxed or decoding?There are quite a number of single digit types with on-board decoding. Based on the pin count, I am expecting this is decoding too. That's the main reason I haven't attacked it with the meter ....
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Hi Dave
All the cattledogged doubles I found were 18-pin direct drive types. But we're winning now. This is muxed, and I have identified the two anodes and seven segment cathodes. But the DP's don't illuminate at all - pin 2 (otherwise unaccounted for) is open to all others. Presume dead.
Tnx to all.
Peter
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