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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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Dec 10, 2. Sign up or log in Sign up using Google. Given the available info, this is probably the correct answer. Got some parts in today to test and a new solderless breadboard I have wanted to get one for years. Yes, my password is: You guys are the experts here! Following up my previous comment: Path-wise, the design difference wouldn’t look enormous, but datsaheet still be an improvement: I thought the IC could handle 10mA.

Thank you all dataheet your help! Jan 7, LED Indicators Posted by opalloyd in forum: I will let you know how it turns out once I can get someone to test it.


CD Datasheet(PDF) – Fairchild Semiconductor

Dec 15, 8. Dec 8, 1. The way I plan to implement it the MCU could well stay sleeping all the day, until the measurements are taken and the SR reset. There’s a good chance that quiescent 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.

Historical anecdotes on my other uses for RS latches. Don’t worry about the mistake.

LED selection indicators controlled by multiple switches

Dec 15, A state change on the inputs would wake the MCU – whereupon it reads the inputs and then goes back to sleep. Most MCUs inputs can’t be configured with internal pull-downs, only with pull-ups.

But I guess that the restrictions were far more For this reason is important that the circuit is able to record a state change even if brief without any clock or external intervention.

I would prefer a non-toggle action. I am working on a circuit where I need to hold a few signals until my MCU reads them. MCU, comms module and voltage regulation sections.

Actually, the second one is pretty much the same dataxheet tkng’s. Post Your Answer Discard 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. Any suggestion on how to implement this otherwise? You can use RS flip flop or D flip flop to make a circuit for the requirement.


I’ll do a little testing to measure current draw and should be ready for the perfboard. Never say you are nobody! Comments like these are one of the many reasons for which I regret skipping all the theory in the electronic classes and being in the first line only when there was the risk datashewt toast stuff. I always believed it was easier to search from something when you know the technical term.

I have toyed briefly with the possibility to use the Enable dxtasheet, but was not sure if it would have cleared the latched states.

Tony EE rocketscientist Thanks a ton for everyone’s help!!

Their later comment says the MCU would be sleeping, before you posted your ‘answer’.