laual Posted January 28, 2020 Report Share Posted January 28, 2020 (edited) Hi, First post, after buying some PCB and parts to begin the core of a mbseq 4+. Part IC1A is giving me a hard time in that I can't figure out the orientation of the part. All datasheets indicate a hole or a notch but all I've got on the part is a printed line. I'm guessing the printed line replaces the hole or the notch, but I would like some advice before I solder all pins of the 3 IC parts. Thanks, Laurent Edited February 25, 2020 by laual Quote Link to comment Share on other sites More sharing options...
latigid on Posted January 28, 2020 Report Share Posted January 28, 2020 Hi Laurent, feel free to post a clear photo/part number and I can check for you. The line should go along pins 1-2-3-4 etc. so the text of the part is readable with the line along the bottom. Best; Andy Quote Link to comment Share on other sites More sharing options...
laual Posted January 28, 2020 Author Report Share Posted January 28, 2020 Hi Andy, The Mouser part number is 595-SN74HCT125DR and the number on PCB is IC1A. Here is a link https://cloud.blackshell.be/s/LPPo9q8f5rr7mqE Laurent Quote Link to comment Share on other sites More sharing options...
latigid on Posted January 28, 2020 Report Share Posted January 28, 2020 Hi Laurent, The part is correctly oriented as pictured, with the "vertical" bar closest to pins 1/16. Bon courage! Andy Quote Link to comment Share on other sites More sharing options...
laual Posted January 28, 2020 Author Report Share Posted January 28, 2020 Hi again Andy, Thanks for the confirmation :) Merci! Laurent Quote Link to comment Share on other sites More sharing options...
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