What's the difference between a HD74LS02P and a SN74F02N ?I've tried Google and it gets a little to technical for me. Are the two interchangeable ?
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What's the difference between a HD74LS02P and a SN74F02N ?I've tried Google and it gets a little to technical for me. Are the two interchangeable ?
http://pdf1.alldatasheet.com/datasheet-pdf/view/247359/RENESAS/HD74LS02P.html
http://pdf1.alldatasheet.com/datasheet-pdf/view/27831/TI/SN74F02N.html
Here are the datasheets if it helps someone help me understand the difference?
How do you tell from the schematics which to use? In the schematic it just has 7402 and I can't find where it says any specifics on if it should be a Low Power Schottky or a Fast or any of that? Am I not looking in the right place?
Edit: I guess I should add without just looking at the one that is on the board.
Most CPU board stuff an LS or HCT is a good choice, where for driver boards I use F series.
But it does help to know which board and location we're talking about.
-Hans
Sys 11A CPU.. I had a Special Solenoid locked on and have replaced the trans associated with them. When testing the IC's with a logic probe I don't get a reading at Pin 10 of U50, it's dead.. I back up and check the 7406 inverter U56 and have Low signal going into Pin 5 but it doesn't invert to a High it stays Low at Pin 6 of U56..
Here is a part of the schematic I'm talking about
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