Hi guys, I'm trying to copy a circuit but I can't find the exact components mentioned on the diagram:
https://www.electro-tech-online.com/custompdfs/2011/09/iocard_master_64.pdf
Today I purchased a Texas Instruments CD74HC154EN chip in place of the 74HC154N mentioned on the diagram, hopefully the sales person was correct in saying it should do the trick.
However, they didn't have any alternatives for the other 2 chips I need i.e. the ones mentioned in the title:
I was suggested the alternative for the 74H259 as 74HCT259N
**broken link removed**
and instead of the 74HC541 I was suggested to get the 74HC541N
**broken link removed**
1.) just wanted to double check that everything is looking good so far
2.) HC I was told to mean High Currect... what does H mean then? Just high?
What do the other extentions mean e.g. in the case of the TI chip I purchased, what does CD mean? What does the N mean on the end of 74HC541N?
T I was told means it's been tested for thermal something or rather so I'm guessing this chip simply works to higher tempereatures.
Thanks, much appreciated guys.