SN74LVC14A: SN74LVC14ADR

LVC already is the logic family with the strongest outputs (32 mA). With a 5 V supply, a stronger buffer would be a gate driver like the UCC44273/UCC27517.

What is the maximum load? Are you sure that the problem is caused by overcurrent and not by overvoltage?

My problem is not in output current. My problen is in summary; my input signals current make my IC down for long term bc when I was looking at in osc screen my input voltage is absolute okay, but for output ch is totally wrong. If I change the IC everything is cool for like 6-8 months.

It is usually not possible to detect the exact cause after the device was damaged.

CMOS inputs have a very high impedance; a current flows only when the voltage is invalid. With LVC inputs, current-limiting resistors work only for negative voltages.

There are no logic devices with more robust inputs. To handle overvoltage, you need external protection, e.g., clamping diodes.

Who saying device was damaged? 

You are totally talking different things. Could you please read again?

As I said I follow my signal one by one with oscilloscope and there is no problem in my signal to my input channel.

I would like to call to component like "component" or "IC". Let me share the mean of device; "

The term "device" generally refers to a unit created by assembling or mounting one or more components to perform a specific function. Thus, a device denotes a structure formed by the combination of one or more components.

However, the term "device" is often used to describe a larger system or apparatus consisting of interconnected and purpose-designed components serving a specific function. This combination of components is usually designed to perform a specific function or serve a particular purpose.

For example, a television is a device created by assembling many different components. These components may include a screen, a power supply, a processor, a tuner, speakers, and other electronic components. However, individual components of a television are not referred to as a "device" on their own; instead, a device is the assembled combination of these components, typically designed to perform a specific function.

The components themselves are often referred to as smaller building blocks, and the term "component" is used to denote these building blocks. Therefore, typically, a single component is not referred to as a device, but it can be part of a device as one of its components."

And obviously the IC is damaged thats why I am here?! I am saying its going down in long term bc of amper peeks.

Here my schmatic;

In the context of this forum, "device" usually refers to the logic IC.

There is nothing wrong with the circuit as shown in the schematic. What is connected to the damaged output(s)? Are there connectors/cables?