3V3 uC input protection from higher voltage?

The idea of the shottky diode was to protect the input from those 'high' voltages but ofcrs could be measured on that node (currently floating).

Best way to protect 3.3V microcontroller pins from a potential - Reddit

3.5V should be within the microcontroller's absolute maximum for input pin voltage (double check this of course), so it should be safe from ...

Best way to protect inputs from over voltages - Arduino Forum

Greater protection can be had by using regular silicon diodes (Vf ~0.7V) followed by a resistor and a pair of schottky diodes.

Automotive uC input protection - AVR Freaks

The other big hazard is accidental connection of a logic input to a higher than expected voltage (eg 12V). For that, on a slow speed input, I would add at ...

how to protect a 3.3v analog pin from being overvoltaged

If you place a 10k resistor in series with the input you limit the input current in to the input to: (5V - 3V3) / 10000Ohms = 0.17mA, well ...

Overvoltage protection MCU pin (voltage divider)

Standard voltage divider (10K and 20k+100k pot) in order to monitor voltage with MCU. It is designed to work with 3.3V MCU and to monitir ...

3V3 uC input protection from higher voltage? (2 Solutions!!) - YouTube

Electronics: 3V3 uC input protection from higher voltage? Helpful? Please support me on Patreon: https://www.patreon.com/roelvandepaar With ...

Best way to protect CPU I/O pins from outside world | All About Circuits

MOV or TVS for high voltage spikes, and you can also use a zener to ground to keep the voltage at the uC's "happy" voltage. Be it 3v3 or 5v ...

TPS561201: TVS protection on 3.3V power rail - TI E2E

uC run on 3.3V. we have 15V to 3.3V below DC to DC converter fo this. to overcome this issue i have added TVS diode SMBJ5.0CA across C72 and ...

Re: 5V & 3V3 POWER SUPPLY BAT60 DIODES: are they critical

The two BAT60 power supply protection diodes (D1 & D3) are not relevant for me because they generate a dropout voltage: +5V is in fact +4.7V and +3.3V is +3V.

Over Voltage Protection for a 3.3V Altera MAX10 FPGA - TI E2E

Other Parts Discussed in Thread: TPD1E1B04 Does TI recommend an Over Voltage Protection Networks or a line of its ICs that can be used to protect a 3.3V ...

Interfacing variable voltage a/c signal with a uC | All About Circuits

I could go to 4.25:10 (a good ratio for the floor) and be at 5v/1.83v, 10v/3.95v but the ceiling is too high which is why I thought the zener's ...

Control opto anything (such as optotriac) from +3.3V GPIO MCU?

So can you drive the uC @ 3.3V with 3mA + 5mA = 8 mA? Certainly ... The high voltage is only on the input resistors. 2x 4pcs 1206 100k ...

Protecting a GPIO pin on OneWire bus? - EEVblog

There's another thread on protecting an LM317 from voltage spikes, but because the 3v3 GPIO pin I'm trying to protect is on a OneWire Bus ...

Voltage/current ratings on ESP32 pins

However, the absolut maximum rating for input high is given as 3.3V. Does that mean that the ESP32 doesn't have any internal clamping/protection ...

Protect I/Os DAC and ADC of my STM32F4

The ESD diodes will be able to tolerate (+-30V in this case ) Only for small time. If Voltage continues for some seconds then it will get damaged. For ADC input ...

Diode voltage clamping - EEVblog

This simple logic level converter will also give good protection from input voltage more negative than 0V and more positive than 9V. You ...

How to protect a Teensy 4.1 pin from higher voltages?

You need one Zener diode of the appropriate voltage (3.3V or maybe 3.6V), and a resistor to limit current from your source.

Running a K155ID1 at 3.3V - Google Groups

> pull its input high, possibly destroying a 3.3V output. Is series ... The 3.3v outputs from the SDCard need no voltage translation to the microcontroller inputs ...

Uart protection | Teensy Forum

cable -> 10k resistor -> BAT54S -> uC input is okay? or should I ... "High" baud rate and "low" voltage of 3.3V is not a great combination.