The 7405 has an open collector output. If you simply put a 7405 in place of a 7404, and don't do anything about those open colelctors, then the oscillator is bound to put out odd results, if it works at all. Michael
Read the full replyI'm using Tina Pro and playing with crystal oscillators. I can get a nice
-John
The 7405 has an open collector output. If you simply put a 7405 in place of a 7404, and don't do anything about those open colelctors, then the oscillator is bound to put out odd results, if it works at all.
Michael
Thanks! I thought that was a little strange.
If you put a 470 Ohm, or thereabouts pullup resistor on the 05, it will probably work the same as the 04.
Tam
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