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.
One thing I did find is that with 3. LED selection indicators controlled by multiple switches Reply to Thread.
CD Datasheet(PDF) – Fairchild Semiconductor
Many thanks to the both of you for your help! Is the enable line capable of effectively “resetting” the latches?
You May Also Like: Any help is appreciated. No system this complex datawheet shown up on this site. Dec 11, 7. I will have to look at these shematics some more later. Don’t worry about the mistake. Sign up using Facebook. Dec 10, 4. Just wanted to update on this project.
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. Thank you all for your help! Dec 15, Hi, thanks for the reply!
Led light controlled by dmx Posted by charles01 in forum: Actually, the second one is pretty much the same as tkng’s. As cd403 been said, you can make this function from more 74HCT-etc gates. I might stick with the because it uses only one IC chip. Do you already have an account?
Since it is regulated and is what the rest of the components run off, I was going to use the 3.
Got some parts in today to test and a new solderless breadboard I have wanted to get one for years. However is practically impossible to find good supply of it and even a datasheet. Yes, my password is: Thanks a ton for everyone’s help!! If you find the switch bounce affects the circuit performance, you can add a capacitor of nF 0.
Thanks for all your help so far sorry for the long winded thesis below Finally got more specifics on the circuit I’m modding.
LED selection indicators controlled by multiple switches
Given the available info, this is probably the correct answer. Tony EE rocketscientist Their later comment says the MCU would be sleeping, before you posted your ‘answer’.
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. 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. While this is not a huge problem to solve and still match my requirements, the resulting design is not as clear as it would be with a single Reset and the density is lower, requiring me to use more ICs.
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 Datasheet Fairchild Semiconductor pdf data sheet FREE from
Any suggestion on how to implement this otherwise? The reason why I was looking at concentrating everything in Hex Latches instead of Quad Latches was dataheet reduce the IC count and, with this, to have a cleaner design of the traces.
I’ll do a little testing to measure current draw and should be ready for the perfboard. You can derive a similar deduction for CD Sign up or log in Sign up using Google. Can’t datasheeet wrap my head around applying a D or JK that way.
LED Indicators Posted by opalloyd in forum: Dec 19, 2, So moving those diodes and datashwet the D and barQ will make it pretty much the same as Ken’s diagram if I’m adtasheet mistaken aside from the output transistors.
Path-wise, the design difference wouldn’t look enormous, but would still be an improvement: You may be looking for this: But you all know how it works I will let you know how it turns out once I can get someone to test it.
Looks like an SR is my only choice here, but my brain is just a drop of the ocean. Below is part of the circuit with the switches. R3 was datashewt to the right just to clear up some clutter. You can test it using a breadboard.