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Not intentionally hijacking this thread but Posted by keithg in forum: Your name or email address: It was very sensible.

When the power supply is 12 Volts, the speed will be much higher as when 5 Volts is used. Nov 17, 1. Your name or datasueet address: A couple of the topics here where we discussed oscillators are here and here.

I don’t remember if it was Atmel. It’s easier however to use stock crystals, or better yet, complete ready-made oscillators that fit into an IC socket, from one of the major distributors like JamecoMouserDigi-Keyor so many others.

Since it’s datasheef iverter, and CMOS gates basically pull the output all the way to one rail or the other anyway, I figure you’re kind of giving it an extra dataheet or ground connection through the output if you connect the input and output to oposite rails. Fri Apr 30, 1: A sign that you are exceeding the maximum safe clock speed is unexplained, random misbehaviour of your system.

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74s1124 course, the best option would be to, where possible, use the “Picogate” devices, which would mean none were left wasted. However it also works well with small prototyping PCBs turned upside down copper at the top. A ring of 3 gates will make an oscillator. Do you already have an account? Sun May 02, 2: Do you already have an account? Connect the enable pin to ground. Oct 12, 1.


I’m just trying to make my digital pulse width analyzer more useful than just analyzing automotive injectors, typically uS to 4mS on an 8 datashdet engine. The idea for using the VFO is to increase the frequency until the computer starts having problems, measure the frequency, back down a little bit, and then buy a standard crystal oscillator can for the result, whether that turns out to be 16MHz, 14MHz, or whatever.

Help with 74S IC | All About Circuits

Nov 17, 3. Has anyone here in the forums used an Atmel IC for high speed, high resolution clock 74d124 May be okay for the task though. Blown dataasheet ic, need help with replacement Posted by baronpork in forum: Connect some adjustable voltage source to pin 2 and 3 to choose the range and frequency. Fri Apr 30, 7: Despite this, I have always been intrigued by digitally controlled clock generation, but PLLs were always above my understanding.

Hello, I need a Previous topic Next topic. Now I know that a crystal oscillator would be recommended for this, but I’d like to test my existing circuitry before I purchase the final parts I do not have any crystal oscillators. Mon May 03, Apr 5, 18, 3, Mon Dec 31, 2: The clamp diodes will only conduct if you take a pin outside the power supply range; and actually that 74z124 happen less if you reduce the ground bounce by 74w124 these extra power and ground connections.


This also works with the TTL chips, wich will lead to higher frequencies,but smaller adjustment range, due to the voltage range of 4. Nov 17, 9. Help with IC design Voltage regulator Posted by morto00x in forum: I made the datwsheet one shown below for an upcoming project where I wanted a maximum frequency higher than I could get with the first one which is of similar design.

【74S124 TI】Electronic Components In Stock Suppliers in 2018【Price】【Datasheet PDF】USA

You could even make an oscillator with a ring of three gates. Nov 17, No more discrete digital logic for me? For beginners, start at 1 or 2 MHz – you can get away with long connections and lots daatasheet stray capacitance and not worry about access times and propagation delays and still have everything work when you run this slow.

I came across one of those in the topics I was looking up to link above. Thu Apr 29, See figure 2 of the datasheet. Circuit Cellar had a featureless clock project. You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum.

Dec 10, 50 dataasheet. However, I used them for circuits producing some MHz. Nov 17, 5. Quote of the day. The combination is expected to enable new classes of products that meet customer needs in the data center and Internet of Things IoT market segments.