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74LS Hoja de datos ( Datasheet PDF ) – BCD DECADE COUNTERS / 4-BIT BINARY COUNTERS
Communications Interface are available and can be downloaded with the. Hitachi Asia Hong Kong Ltd. Some TTL logic parts were made with an datasgeet military- specification I don’t think that it would be too complicated to make a circuit which will start a washing machine after X amount of time. Logic Families – Wikimedia Commons ; Aug 11, Products conform to specifications per the terms of Texas Instruments standard warranty. While it definitely wouldn’t be as educational as making a circuit from scratch, it would quickly solve my problem.
Thank you very much.
Hitachi Semiconductor 74LS Series Datasheets. 74LS, HD74LS, 74LSA Datasheet.
Who is online Users browsing this forum: CMOS timers can be used to achieve delays of hours. An unexciting practical answer: Actually I never would have thought of finding a useful purpose for my stack of alarm clocks which I never used. Fri Sep 25, 8: At least it will work in the presence of a Tesla coil while being tapped by a hammer or the washer’s spin cycle.
If you have to press and release the pushbutton to start the washer, you may need a little more complicated relay arrangement.
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I didn’t think too datsaheet about power supply, but I’d either datashheet “wall-wart” adapter or check the insides of the washing machine for any available power sources.
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Set the off time on the timer as close to the start time to release the relay. Catasheet Required, but never shown. No need to undercomplicate things just because you are using an off-the-shelf long delay timer.
Products and product specifications may be subject to change without notice. The simplest and most pre-fabricated solution.
Actually the Chip itself can drift with temperature. Sign up using Email and Password. Great thanks in advance! For further information write to: Help me to find this datasheet pdf download. Because of that, many people darasheet to turn on big energy consumers after midnight, when electricity is cheaper.
The outputs go to the buttons and one is paralleled with the dryer start switch as you mentioned.
74LS162 PDF Datasheet浏览和下载
No registered users and 9 guests. You could use one of these, set datwsheet for the start time, and use the output to control a v relay which would operate the washer button. As for the oscillator, the slowest crystal I could find is 32 KHz which is too fast for me. There are problems with timer approach. I’ll be really very grateful.
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