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Questions tagged [logic-level]

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Logic level refers to the input and output voltage levels of digital logic, which is often 3.3 V or 5 V.

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Global goal : I have a non compliant 5V I2C bus (side A of a MAX14937 isolator). In practice, it means that all devices (excepted the MAX14937) must have an output low voltage <=0.4V, and and ...
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I am currently facing issue with WS2812B and trying to solve this timing when I use below timing the rgb led works fine on 5V power supply but it does not work on below 4.8V ...
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I'm working with 74HCT1G32 but I'm not sure how to interpret the datasheet value for high and low level voltage. Let's talk, for example, about the high level. In datasheets from other manufacturers, ...
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I am currently using an Arduino board and I need to connect an external 12V digital signal source to it. I have done it using an N-MOS. The external switch can provide 12 V to the gate pin. I am using ...
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I am trying to voltage shift a signal from 0.8 to 6 V uni-directional. I can shift it when I don't simulate the load of the output, but the moment I add a 50 Ω load like there will be in the system (...
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Test Principle Overview: The test setup involves multiple catheter rings connected through relays. During each test cycle: We apply +300V DC to all but one of the rings (via relays). The remaining ...
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I bought a whole bunch of level shifters from Sparkfun and another vendor on Amazon. None of them seem to actually work (tried with like 6 different ones). SO, I guess I'm doing something wrong. I'm ...
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Can somebody confirm whether SL2304 is 3.3 V logic level mosfet or not? Note that I want 300 mA @ VGS = 3.3 V. The datasheet I have has no characteristic curve, and can be found here.
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In a project I have an MCU fill up a tank through a high-side controlled solenoid valve. As a security measure there's a float switch in series that cuts off the solenoid valve supply when an absolute ...
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Generallay I saw on market 3.3 to 5v level shifter but this time I need for STM32 (3v3) to PLC (24v) voltage level shifter (translator). in textile machine there is lots of PLC controller and we can ...
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Hello and good evening, I am working on my first project with a transistor for level switching. I am using 3.3V STM32 controllers and would like to translate to a 5V signal for usage with a PWM. I am ...
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I have designed a PCB for a small project I am working on, the goal is to have a Raspberry Pi to talk to a PLC, since the Pi and PLC do not use the same logic levels (3.3 volts vs a whopping 24 volts ...
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I have been trying to use a series of XOR gates (74LS86, 74HC86, even CD4070) to invert address lines going to a 4164 DRAM, but am having little luck. Here's a drawing to illustrate my setup on the ...
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I'm currently working on an OSE-Signal processor to connect with my ESP32's GPIO input, in order to validate the state of an OSE Sensor. An OSE sensor is commonly used on automatically opening/closing ...
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I am looking for an auto-bidirectional multi-voltage level translator for converting TTL and LVCMOS level signals. I understand that the 3.3 signal coming from the LVCMOS system is safe for the TTL ...
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