TTL and CMOS logic 74 Series !http://www.datasheet4u.com/TTL/TTL.html
This page contains links to datasheets for all the IC's used in my projects, click the part number to read the datasheet. Some of these I scanned myself, others are located on others' pages or the manufacturer's website. If there are any broken links tell me. To read these datasheets you need to install Adobe Acrobat if you haven't already done so. The scanned datasheets are sometimes easiest to read if you select "Actual Size" in Adobe Acrobat's "View" menu.
A number of these parts are obsolete, and several more will probably become obsolete very soon. I have saved local copies of all of the datasheets linked here, so that they will be preserved if the manufacturers decide to remove the datasheets from their websites. In this case I will replace the URL with a local link. If you find any broken links, let me know.
Many IC's are made by multiple manufacturers, and there have been many rounds of mergers, aquisitions and consolidations in the semiconductor industry. Therefore the manufacturers listed here are not necessarily the ones whose IC's I used, but in all cases chips from a different manufacturer should be interchangeable. In general 74nn chips and 74LSnn chips can also be interchanged, I simply used what was available to me at the time.
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74-series IC data sheet indexhttp://rabbit.eng.miami.edu/info/datasheets/-----------------------------------------------------------------------------------
TTL Logic (74,74S,74LS)http://www.ee.washington.edu/stores/catalog/ttl.htm-----------------------------------------------------------------------------------
74xx series Gateshttp://www.elec.qmul.ac.uk/staffinfo/davew/lab/ttl74.htm
