In my circuit I need a single OR gate. I don't want to use a quad-OR-gate IC because it would take up too much space. However, I'd still like performance (low propagation delay, low current draw) similar to a 74HC series chip.
Would I be good with an OR gate made from two diodes and a resistor? What kind of diodes would be fast enough? The voltage drop shouldn't be an issue, I'm using CMOS logic everywhere else so 4.3V should be properly recognized as high. Are there better alternatives when a single logic gate is needed?
Would I be good with an OR gate made from two diodes and a resistor? What kind of diodes would be fast enough? The voltage drop shouldn't be an issue, I'm using CMOS logic everywhere else so 4.3V should be properly recognized as high. Are there better alternatives when a single logic gate is needed?