Program mable T im e r. CD Programmable Timer. General Description. The CDBC Programmable Timer is designed with a. stage binary counter. said circuitry and specifications. Page 7. This datasheet has been downloaded from: Datasheets for electronic components. Nexperia B.V. All rights reserved. HEFB. All information provided in this document is subject to legal disclaimers. Product data sheet.

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Project Idea Scoping out an idea based on electronic components.

Programmable Timer

No one is going to copy the board as you can’t even buy the parts for what they sell the completed boards for with shipping! I wasn’t designing the board I was reverse engineering it to get an idea of it’s capabilities as it obviously had more than the manufacturers “datasheet” suggests. Buying and general tech. Extra rules apply to questions on vehicle electronics – please read before posting. Commercial stuff selling, paid work etc. CMOS Technology file 1. A subreddit for practical electronic engineering questions: Fixing a commercial product.


You stated “Q output of the CD shows connected to Vcc shorting the output “.

So dc4541 the circuit I’ve got is: Not sure if your question is on topic? Please tell us roughly where you live – especially if you are looking for a local supplier!

PV charger battery circuit 4. We cover designing or repairing solar-related electronic circuits control and management systems.

Multisim and Ultiboard

Not for general ‘modding my PC’ etc. How to improve delay time when you have a long metal wire?

AF modulator in Transmitter what is the A? Is it a modular system such as: The circuit should start the motor only when the button is pressed, and the motor should only be on during this time. Submit a new text post. Part and Inventory Search.

CD Datasheet(PDF) – TI store

If 9 is set to low, the motor will turn on after the timer has ended. I suspect NXP sells a lot of these. The one drawback of buying from China is that the sellers never give enough information about the product.


You need to disable auto reset function when trigger by power on event is not desired. What is the function of TR1 in this circuit 3. No generic ‘which is best’ and ‘where to buy’-type questions please.

The time now is This results in the board having power when your NC alarm relay is in normal mode. Even a utube video! It is probably in stock at your local NXP distributor. CDB’s auto reset functionality datasyeet extra current and also may not work properly at 5v supply.

Electronics Design – specialist subreddits Audio construction: I was ccd4541 that someone had played with this more and had something more than the schematic, like the datasheet.