Series:	TC7WH
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Logic Type:	Buffer, Non-Inverting
Number of Elements:	2
Number of Bits per Element:	1
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	8mA, 8mA
Voltage - Supply:	2 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-VFSOP (0.091", 2.30mm Width)
Supplier Device Package:	US8
Base Part Number:	7WH125

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Logic - Buffers, Drivers, Receivers, Transceivers

The TC7WH125FK is a logic-type integrated circuit with a wide range of applications in buffering, driving, receiving, and transceiving. Its function and capabilities are worthy of deeper exploration in order to fully understand its purpose and usage.

Application Field

The TC7WH125FK circuit mainly serves a proper and specialized function of switching, that makes it an ideal choice for interface applications like connecting a generic peripheral side to a system/microcontroller. This applies to all kinds of low speed peripheral sides, such as modems, sensors, etc. In particular, the TC7WH125FK is often used for USB peripherals, serial port peripherals and sound cards, because the drivers and receivers used in those systems rely on logic to function properly.

Working Principle

The TC7WH125FK works using logic gates. In particular, it is based on a number of logic gates with transistors, commonly known as “tristate logic”. This makes possible for users to extend the driving and receiving capability of the device beyond its original data rate, thus enabling it to work as a buffer and interface between two systems when data rate needed is higher than the rated one.Tristate logic is mainly used when more than one system is interconnected. In such cases, each logic gate can be configured to be part of one or the other system and the output will depend on the state of the logic gate, whether it be low, high or open. A low state means that no current will travel through the input of the gate. A high state means that current will flow to the output and a tristate logic state will allow the logic gate to accept the input while passing it on to the output.When dealing with the TC7WH125FK, the integrated circuit comes to play when the logic gates used need to buffer the voltage levels or frequencies in an analog circuit. A voltage level converter is used for voltage level translation, for instance, between 3.3v and 5v. Similarly, the integrated circuit is also connected to the output of the frequency divider in order to reduce the frequency of the high-frequency clock that is generated in the high-speed system.

Overall Benefits

The main function of the TC7WH125FK is to provide an interface between systems and peripherals. This bridge is established by connecting the input of the logic gate with the peripheral, while the output of the logic gate is connected to the system. This allows the logic gate to be configured so that when the system sends out a signal, the peripheral will receive it, and the data rate performance of the system-peripheral system will be improved.Furthermore, the integrated circuit can be used to extend the driving and receiving capability of fast peripherals, as the logic gate can be configured so that the peripheral will receive signals from the system at an increased frequency. This function is especially useful when a fast peripheral, such as a modem, needs to be connected to a low-powered system, like a microcontroller.Lastly, the TC7WH125FK can also be used in buffering applications, where the input and output voltage and frequency levels of a specific analog system needs to be optimized for a particular application. The TC7WH125FK integrated circuit is a powerful and versatile tool for a number of applications, as it does its job as a logic gate effectively and at a reasonable cost. Its function is important for reliable systems and it is essential to consider using it when relevant situations arise.

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