SN74AVCH4T245PWE4

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The SN74AVCH4T245PWE4 is a product from Texas Instruments. It is a low-voltage bidirectional transceiver, part of the family of devices known as logic translators and level shifters. It facilitates two-way communication between devices running on different voltage levels. It enables translation between logic signals, such as CMOS, TTL, open drain/collector, and npn, and performs data and control signal translation in a variety of applications, including USB and I2C. For these reasons, and because it features a wide operating voltage range (1.1V to 5.5V, allowing for 1.8V and 3.3V logical voltages, and features low overall power consumption, the SN74AVCH4T245PWE4 is an attractive choice in many applications where voltage level conversions are required.

In logic systems, a translator (also known as a level shifter) is a circuit used to convert logic signals between different logic families. In a digital system, logical signals may be displayed in two forms, such as in a binary representation (high or low), or may take the form of electrical signals (positive or negative voltage). Logic families define the voltage level at which these signals are transmitted, and accordingly, when devices using different logic families are to be interconnected, a signal conversion between the two is necessary.

Examples of popular logic families include CMOS and TTL, which have different voltage levels, and so require an intermediate translating device such as the SN74AVCH4T245PWE4 to ensure signals can be communicated between them. Translators are also used for other logic families such as open drain/collector, and npn.

The SN74AVCH4T245PWE4 is a low-voltage bidirectional transceiver, meaning it can transfer data in two directions, from low to high voltage (VOH), and from high to low voltage (VOL). This transceiver is a bi-directional device, meaning it can be used for both data and control signal formatting. The dual-side components ensure bidirectional signal conversion and are protected against latchup.

The SN74AVCH4T245PWE4 is designed to work with many popular logic families, allowing for signal level conversion between 1.1V to 5.5V, allowing for 1.8V and 3.3V logic voltages. With a total power consumption of only 2.6 mW and a propagation time of only 4.7 ns, it is well suited for applications where power consumption is a crucial factor. The device is designed to consume as little power as possible by using low-slew rate input buffers and controlled rise times on outputs.

In practice, the SN74AVCH4T245PWE4 is well suited to many applications where voltage level conversion is necessary. It is commonly used with applications such as USB and I2C, and is frequently the device of choice for connecting logic signals in embedded systems. And because of its wide voltage range, fast switching times, and low power consumption, the SN74AVCH4T245PWE4 has become a popular choice for many low-voltage data and control applications.

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