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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Looks like an SR is my only choice here, but my brain is just a drop of the ocean. You matter to me!

(PDF) CD4044 Datasheet download

Is there a reason why you have to use the fewest ICs? Never cd0444 you are nobody! Any suggestion on how to implement this otherwise?

You can achieve the same externally in your PCB design, very easily albeit with a lower density, you’re right. 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.

Is the enable line capable of effectively “resetting” the latches? Sign up using Facebook. 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.


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 datassheet resets linked together in a clean way. Cr4044 this reason is important that the circuit is able to record a state change even if brief without any clock or external intervention. Post as a guest Name. Tony EE rocketscientist EDIT — to clarify a few points in the design: Sign up or log in Sign up using Google.

There’s a good chance that quiescent current ratasheet 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. You may be looking for this: Sourcing it could be really troublesome. 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.

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. SNN simply has all of its reset inputs internally connected. No system this complex has shown up on this site. OTOH, you might way to use the common enable in the CD to implement the solution you’re looking for.


CD 데이터시트(PDF) – TI store

Sign up using Email and Password. 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 of the traces.

Why does this work? I would probably need to contemplate it for quite some time to fully grasp it. I want to keep it flexible, both capability and power-usage wise and this requires balance.

CD4044 PDF Datasheet浏览和下载

However is practically impossible to find good supply of it and even a datasheet. Enric Blanco 4, 5 11 I had a sync.

A state change on the inputs would wake the MCU – whereupon it reads the inputs and then goes back to sleep. Look daatasheet “Wake-up on pin change”, not interrupt. The shortcoming is that I have 4 separate resets, while ideally I would need only one. I would disagree, but I may be missing the picture here.