Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
of a 7404, and don't do anything about those open colelctors, then theI'm using Tina Pro and playing with crystal oscillators. I can get a nice
4MHz square signal with an SN7404, but when I replace it with an SN7405 the
signal is a sine wave. Is this normal?
-John
The 7405 has an open collector output. If you simply put a 7405 in place
"John Matzen" (asdofijwef@aoisfjdpzoxicv.comasd) writes:
I'm using Tina Pro and playing with crystal oscillators. I can get a
nice
4MHz square signal with an SN7404, but when I replace it with an SN7405
the
signal is a sine wave. Is this normal?
-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
probably work the same as the 04.Thanks! I thought that was a little strange.
"Michael Black" <et472@FreeNet.Carleton.CA> wrote in message
news:ct767j$8ga$1@theodyn.ncf.ca...
"John Matzen" (asdofijwef@aoisfjdpzoxicv.comasd) writes:
I'm using Tina Pro and playing with crystal oscillators. I can get a
nice
4MHz square signal with an SN7404, but when I replace it with an SN7405
the
signal is a sine wave. Is this normal?
-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
If you put a 470 Ohm, or thereabouts pullup resistor on the 05, it will