The CDBC are quad cross-couple 3-STATE CMOS. NOR latches, and the CDBC are quad cross-couple STATE CMOS NAND latches. Each latch. Data sheet acquired from Harris Semiconductor. SCHSC – Revised March The CDB and CDB types are supplied in lead hermetic. CD datasheet, CD circuit, CD data sheet: TI – CMOS QUAD 3- STATE R/S LATCHES,alldatasheet, datasheet, Datasheet search site for.

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Hi, thanks for the reply! As far as possible I want to keep it digital and without any high frequency line anywhere or, better said, well confined in their own “realm”: 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. I would probably need to contemplate it for quite some time to fully grasp it.

CD (INTERSIL) PDF技术资料下载 CD 供应信息 IC Datasheet 数据表 (1/10 页)

However the doubt stand. I would spare the fixed via to the enable having it routed to the MCU and used to control the reset AND the enable itself and would have all the resets linked together in a clean way. Thanks for the reply. I want to keep it flexible, both capability and power-usage wise and this requires balance. I had a sync. As has been said, you can make this function from more 74HCT-etc gates.

Cc4044 EE rocketscientist 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.


Their later comment says datxsheet MCU would be sleeping, before you posted your ‘answer’. On processors such as the Atmel AVR that power is in the single microamp region – the clock doesn’t need to be running.

You can dc4044 the same externally in your PCB design, very easily albeit with a lower density, you’re right. Looks like an SR is my only choice here, but my brain is just a drop of the ocean. You might way to use the common enable in the CD to implement the solution you’re looking for. Any suggestion on how to implement this otherwise? Email Required, but never shown. Can’t yet wrap my head around applying a D or JK that way.

MCU, comms module and voltage regulation sections. You matter to me! Sign up using Email and Password. The most complex datashet by design is planned to be the MCU.

If you look at the truth table of CD Any way, take into account that the SNN has been datssheet for 25 years, its not a good idea to even consider that part for a new design.

Enric Blanco 4, 5 11 I am working on a circuit where I need to hold a few signals until my MCU reads them. See line 1 of the question, it suggests the OP’s considered that.

OTOH, you might way to use the common enable in the CD to implement the solution you’re looking for. On top of that, when Dataheet will get into power-optimization for the MCU I may end up having to choose between keeping the interrupts alive or saving power. I would disagree, but I may be missing the picture here. Backup question maybe deserving its own question: By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.


Given the available info, this is probably the correct answer.

CD4044 Datasheet

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Post as a guest Name. Home Questions Tags Users Unanswered. EDIT — to clarify a few points in the design: I think you need to re-evaluate how much power is required by “keeping the interrupts alive”. Vatasheet CD is indeed the one I have in the design now. The shortcoming is that I have 4 separate resets, while ideally I would need only one.

(PDF) CD4044 Datasheet download

A state change on the inputs would wake the MCU – whereupon it reads the inputs and then goes back to sleep. No system this complex has shown up on this site.

Is there a reason why you have to use the fewest ICs? Comments like these are dataeheet 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 to toast stuff. Historical anecdotes on my other uses for RS latches. Why does this work? You can derive a similar deduction for CD Thank you all for your help!

So you may then want to consider another alternative.