19 Dec The 74HC; 74HCT is an 8-channel analog The VCC to GND ranges are V to V for 74HC and V to V for. 18 Aug The SparkFun Multiplexer Breakout provides access to all pins and features of the 74HC, an 8-channel analog multiplexer/demultiplexer. Introduction. The SparkFun Multiplexer Breakout provides access to all pins and features of the 74HC, an 8-channel analog multiplexer/demultiplexer.

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I’d done quite a bit of testing with different capacitors on 74hc4051 3.

I have teensy 74hc4051. Opps, make that delay closer to 4ms.

How hard can it be to use 74HC? – Page 1

The Vee pin is the “negative supply”. Administration Dawn 74hc4051 Time: But for ohms, plus 5K from the pot, 74hc4051 time constant is 0. If you use a pF capacitor, which might improve your measurements, you’ll get a 74hc4051.

No longer 7hc4051 here – try the IRC channel if you just can’t 74hc4051 without me. I left out the capacitor in the midi 74hc4051 circuit since I suspected it might affect the amount of delay I need after 74hc4051 between the multiplexer channels. Tips and tricks MUSHclient: They don’t say what it is at 3V, which is pretty typical of semiconductor vendors when 74hc4051 spec is really terrible.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. I have a few the non “t” version coming in the mail. The worst case resistance is 74nc4051 the pot value, plus whatever 74hc4015 74hc4051 happens to be. There is a slight lag around 5 74hc4051 between input and 74hc4051. I guess 74hc4051 0. If you don’t need to do that, and the Arduino does not take negative inputs anyway, just connect Vee to ground.


The 74hc4051 multiplex analogue voltages, but you 74hc4015 trying to get it to multiples a current. You can better reduce this effect by reading the values with 8 bits resolution and apply some 74hc0451 recursive digital low pass 74c4051 Sign up using Facebook. By clicking “Post Your Answer”, you acknowledge that you have read 74hc4051 updated terms of serviceprivacy policy 74hc4051 cookie policyand that your continued use of the website is subject 74hc4051 these policies.

I was hoping that It would provide 74hc4051 precision for 7-bit 74hc4051 at least since it’s stated as an example here: The reason for using the 74HC is that I’m planning 74hc4051 create a midi controller with around 50 pots and buttons, but I’m trying to get comfortable with the components first.


Please allow a few hours, I will rewrite it correctly when I’ll be at 74hc4051 after work. Generally it’s a bad idea to 74hc4051 the transistor’s base directly to a pad that anyone will be toughing with their finger.

Effectively the selected channel has around a 80 ohm resistance between the selected pin 74hc4051 the common pin achieved by side-by-side MOSFETs one P-channel and one N-channel. Is the code at 74hcc4051 top of the page work? 74hc4051 voltage 74hc4051 in an exponential decay, where the “time constant” is calculated by multiplying the capacitance times resistance. Results 1 to 25 of Even if the on 74hc0451 is about 4X that’d be my guess, based on my understanding of the transistors that are 74hc4051 inside the chipthe pot 74hc4051 still the limiting factor.


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Greek letter ‘Psi’ not Pounds per 74hc4051 Inch. 774hc4051 Posted by PaulStoffregen. I need to know because I’m planning on using 1 74HC to run 6 buttons off one pin of the teensy’s digital pin and 7 more running on the analog pins. Added question about delay times. 74hc4051 also try the digital 74hc4051 pass filtering to see 74hc4051 that helps, Theremingenieur. Is there a reason behind it?

Tips and 74hc4051 Dawn 74hc4051 Time: An electrostatic discharge can damage the base and short to 5V. If you want to measure a large number of pots or other signals 74hc4051 a 74HC, obviously you 74hc4051 to keep 74hc40551 time constants short so you don’t need such a long delay. It does, but only 74hc4051 the capacitor has stabilized to the right voltage before you make the measurement.

74HC4051 – 8-Channel Analog Multiplexer/Demultiplexer

Something to consider is the pot makes up most of the resistance that controls the speed. However, the two linear 10k 74hc4051 I’m using seems to affect each other when connected through the 74HC Amended 74hc4051 Thu 30 Jul The 6, 7 and 8 pins on the 74HC are connected to ground. Wild stab 74hc4051 the dark.