Texas Instruments CD Latches are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments CD Latches. Quad R/S latch with 3-state outputs. Rev. 11 — 24 March Product data sheet. Table 1. Ordering information. All types operate from °C to +85 °C. CD datasheet, CD circuit, CD data sheet: FAIRCHILD – Quad 3- STATE NOR R/S Latches. Quad 3-STATE NAND R/S Latches,alldatasheet.

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The shortcoming is that I have 4 separate resets, while ideally I would need only one. Most MCUs inputs can’t be configured with internal pull-downs, only with pull-ups.

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Dec 11, 7. While not the ideal for the approach here simple, cheap and reliable circuit, with only the MCU as “critical complexity”I believe that your comment may deserve an answer by itself for posterity. Hi, thanks for the reply! Dec 19, 2, I’m still trying to get used to those truth datashret.

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SNN simply has all of its reset inputs internally connected. Historical anecdotes on my dwtasheet uses for RS latches. Led light controlled by dmx Posted by charles01 in forum: If you look at the truth table of CD I’ll do a little testing to measure current draw and should be ready for the perfboard. Embedded Systems and Microcontrollers.


Dec 11, 6. I will have to look at these shematics some more later. Dec 15, 9. Sign up using Email and Password. Is there a reason why you have to datasyeet the fewest ICs? Quote of the day.

There’s a good chance that datawheet current added to the system by an extra logic IC would be greater than the current consumed by the MCU waking up and executing a handful of instructions.

Home Questions Tags Users Unanswered. Dec 15, 8. I dataeheet I will have to stick with that option for now. So moving those diodes and disconnecting the D and barQ will make it pretty much the same as Ken’s diagram if I’m not mistaken aside from the output transistors. No system this complex c4043 shown up on this site.

When it comes to this IC stuff, I have absulutely no experience in this stuff but I always like to learn. Dec 16, It is the least I can do for all the help. However the doubt stand. You matter to me! Dec 10, 4.

LED selection indicators controlled by multiple switches | All About Circuits

I would prefer a non-toggle action. By using our site, you acknowledge dtasheet you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.


Enric Blanco 4, 5 11 Thanks for all your help so far sorry for the long winded thesis below Finally got more specifics on the circuit I’m modding. So you may then want to consider another alternative.

Email Required, but never shown. Many thanks to the both of you for your help! By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. The switch should be connected directly to the IC1 out line and not ground.

One thing I did find is that with 3. Jan 7, As has been said, you can make this function from more 74HCT-etc gates. Please note I’ve never tested it, yet I think it will work.

The reason why I was looking at concentrating everything in Hex Latches instead of Quad Latches was to reduce the IC count and, with this, to have a cleaner design datawheet the traces.

I had no clue the other way wouldn’t work. For this to work you need a pull-down resistor on every output.