74AVCH20T245BX,518

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Logic devices, specifically translators, level shifters, and demultiplexers are an important part of modern electronic systems. The 74AVCH20T245BX, is one such device that serves the purpose of level shifting between various voltage levels. This device is designed to be used with both TTL and low voltage TTL (LVTTL) components by allowing a TTL logic level to be translated up to 5V TTL logic. Let us take a look at what this device is, its application fields, and how it works.

The 74AVCH20T245BX

The 74AVCH20T245BX is a quad bilateral level translator made by Texas Instruments (TI). The device has five pins and is packaged in a TSSOP14 package. This device is available in two versions, the 74AVCH20T245BX and 74AVCH20T245DP. The difference between the two devices is the operating temperature range. The former has a -55^oC to +125^oC temperature range, while the latter can operate from -40^oC to +85^oC.

The device translates logic levels between two voltage families. It allows for a TTL logic level to be translated up to 5V TTL logic and vice versa. This translation is done without compromising signal integrity by maintaining signal rise and fall times and output noise levels. It also supports a maximum frequency of 50MHz and can drive up to 32 outputs.

Application Fields

The 74AVCH20T245BX has many application fields where it can be used. It can be used to translate logic levels between various voltage families like 5V, 2.5V, and 1.5V. This device is mainly used in Factory Automation, consumer electronics, automation, HVAC, security systems, and other industrial applications. It can also be used in applications that require level shifting from high to low and low to high voltages, like USB Type-C audio/video devices, aircrafts, washing machines, and vending machines.

It can also be used for interfacing mixed voltage designs. This device makes it possible to interface a variety of components with different logic standards such as TTL, LVCMOS, LVDS, and ECL. This device can also be used in interfacing digital circuit boards that require isolation. This reduces the risk of contamination between different components on the circuit board due to the isolation provided by the device.

Working Principle

The 74AVCH20T245BX works by comparing the input signal level to a reference voltage level. When the input signal is higher than the reference voltage level, the output will be high, and when the input signal is lower than the reference voltage level, the output will be low.

The device also features an internal Boost amplifier, which provides a low-impedance driving capability. This means that the device can drive components with high load capacitance, such as LCD panels, at high speed.

Furthermore, the device can provide a slew rate of 10MHz, which is 10 times the speed of other translation devices, making it ideal for applications requiring high data transfer speeds.

The device also provides a level-shift feature which allows the output signal to be translated from high to low voltage levels, and vice versa, with minimal signal levels shift.

Conclusion

In conclusion, the 74AVCH20T245BX is a useful logic device used for translating logic signal levels between various voltage families. It is an important tool for powering and protecting modern-day electronic systems. The device has many application fields such as USB Type-C audio/video devices, aircrafts, washing machines, and vending machines. It also works on the principle of comparing the input signal level to a reference voltage level and providing a low-impedance driving capability.

The specific data is subject to PDF, and the above content is for reference