74LS162 DATASHEET PDF

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How would I design a circuit which would wait for several hours and then “push” a button without using microcontrollers? I had the PLC around from another project.

I’ll take a look. You could use one of these, set it for the start time, and use the output to control a v relay which would operate the washer button. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Products conform to specifications per the terms of Texas Instruments standard warranty. Thank you very much. By clicking “Post Your Answer”, you 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.

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74LS Datasheet(PDF) – Motorola, Inc

Some background info first: General directions for a timer circuit which will not use microcontroller and which can measure several hours needed Ask Question. Are there any special considerations for circuits which are going to vibrate? I think the best solution is to use CD with a crystal oscillator which dataaheet produced 1Hz pulses.

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No need to undercomplicate things just because you are using an off-the-shelf long delay timer. Hitachi Asia Hong Kong Ltd.

Will be grateful for any help! Anyway that’s not yet the problematic part for me. This product is not designed to be radiation resistant. Then use a counter using the 1Hz pulses as clk and use it to count the seconds.

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Use the relay’s output to “push your button” however that needs to be done for the particular device. This planar stripe MOSFET has better characteristics, such as fast switching time, low on resistance, low gate charge and excellent avalanche characteristics.

At least it will work in the presence of a Tesla coil while being tapped by a hammer or the washer’s spin cycle. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without. After examining my washing machine, I noticed that machine itself is started by a normally off pushbutton.

74LS162 Datasheet PDF – Hitachi Semiconductor

The last part of my question are vibrations. An unexciting practical answer: Mount it straight datashete the control panel plate of datashee washing machine Sign up or log in Sign up using Google. Have a look at basing your circuit around a CMOS stage ripple counter and oscillator. Some TTL logic parts were made with an extended military- specification Email Required, but never shown. It was interesting to program with ladder logic too. Sign up using Email and Password.

If you have to press and release the pushbutton to start the washer, you may need a little more complicated relay arrangement. I know that a microcontroller is the most elegant satasheet, but I’d rather skip collecting necessary gear for working with them at this time. Maker, TI [TI store]. Even within the guaranteed ranges, consider normally foreseeable.

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The oscillator would have very low frequency say 2Hz if possible and the counter would send signals to a device 7ls162 would respond when counter reaches a certain number say after 18 seconds. JeffV 1 5 They are edge-triggered, synchronously presettable, and cascadable MSIbuilding blocks for counting, memory addressing,frequency division and otherapplications. Plug your devices and an AC relay rated for your countries power into it. No registered users and 9 guests. The outputs go to the buttons and one is paralleled with the dryer start switch as you mentioned.

Great thanks in advance! I’ll take it into consideration. CMOS 74ls62 can be used to achieve delays of hours.

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Have it send you an SMS? For what its worth Ecoflair Technical Specifications Provides detailed information on unit I’m thinking that the button could be replaced by a transistor or some sort of normally off relay. Hitachi makes every attempt to ensure that its products are of high quality and reliability. Communications Interface are available and can be downloaded with the.