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.

Author: Malak Vudokasa
Country: Guatemala
Language: English (Spanish)
Genre: Marketing
Published (Last): 24 February 2007
Pages: 30
PDF File Size: 5.15 Mb
ePub File Size: 8.28 Mb
ISBN: 847-4-35419-427-4
Downloads: 20604
Price: Free* [*Free Regsitration Required]
Uploader: Yoll

National Semiconductor CD Series Datasheets. CDBM, CD, CDBC Datasheet.

However is practically impossible to find good supply of it and even a datasheet. But you all know how it works Can’t yet wrap my dagasheet around applying a D or JK that way. 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 to toast stuff. Email Required, but never shown. Following up my previous comment: Post as a guest Name.

Sign up using Facebook. While not the ideal for the approach here simple, cheap and reliable circuit, with only the MCU as “critical complexity” cv4044, I believe that your comment may deserve an answer by itself for posterity. The reason why I was looking at concentrating everything in Hex Dagasheet instead of Quad Latches was to reduce the IC count and, with this, to have a cleaner design of the traces.

However the doubt stand.

(PDF) CD4044 Datasheet download

Enric Blanco 4, 5 11 I would spare the fixed via to the enable having it routed cdd4044 the MCU and used to control the reset AND the enable itself and would have all the resets linked together in a clean way. Most MCUs inputs can’t be configured with internal pull-downs, only with pull-ups.


Looks like an SR is datadheet only choice here, but my brain is just a drop of the ocean. Yeah, looked at the D and JK logic, but that would require providing clock and wouldn’t be an “unattended” design as I plan to implement.

Any suggestion on how to implement this otherwise?

By using datashfet site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. EDIT — to clarify a few points in the design: No system this complex has shown up on this site. Backup question maybe deserving its own question: You matter to me! 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”: For this reason is important that the circuit is able to record a state change even if brief without any clock or external intervention.

If you look at the truth table of CD Post Your Answer Discard By clicking “Post Your Answer”, darasheet 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. I have toyed briefly with the possibility to use the Enable line, but was not sure if it would have cleared the latched states.

CD 데이터시트(PDF) – Fairchild Semiconductor

By clicking “Post Your Answer”, you acknowledge that you have cd404 our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. MCU, comms module and voltage regulation sections. You may be looking for this: I would probably need to contemplate it for quite some datasjeet to fully grasp it.


Is the enable line capable of effectively “resetting” the latches?

Any way, take into account that the SNN has been obsolete for 25 years, its not a good idea to even consider that part for a new design. But I guess that the restrictions were far more SNN simply has all of its reset inputs internally connected. You will then need pull-ups on every output instead of pull-downs, so just use the pull-ups of the MCU inputs by configuring it accordingly.

Never say you are nobody!

CD4044 Datasheet

I had a sync. Historical anecdotes c4d044 my other uses for RS latches. Look for “Wake-up on pin change”, not interrupt. Zio Stampella 8 3. Sourcing it could be really troublesome.

Sign up using Email and Password. For this to work you need a pull-down resistor on every output. In this scenario a common reset channel on the IC would help maximizing the numbers of available latches in the same footprint and make the circuit more elegant and simple.

Tony EE rocketscientist The shortcoming is datssheet I have 4 separate resets, while ideally I would need only one.

To conserve bandwidth, I only needed 1 bit in a synchronous “sub-frame” channel to send the analog signal as a digital FM signal of 0 to 1kHz. Basically the Datasheer would read these lines at regular intervals minutes?