74LVCH245ABQ-Q100X

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The 74LVCH245ABQ-Q100X is a high-performance, low-voltage, 8-bit buffer/line driver with 25 Ohm series resistors in the outputs to protect the outputs. The device is compatible with many logic families such as using 3.3 V signaling with 5 V systems. It offers high bus-driving capability and allows multiple octal buffers/line drivers to be connected together. This type of device is perfect for data transmission applications, such as interfacing between different types of buses, such as memory and peripheral buses, as well as other general-purpose applications.

The 74LVCH245ABQ-Q100X logic buffer/line driver is offered in an 8-pin plastic dual in-line package (PDIP) or surface mount package (SOIC). It is designed to provide superior performance over wide voltage ranges. The device has three different logic families in the inputs, allows for mixed-voltage operations, and is hot-swappable. It can also be used in clock and signal distribution networks, as well as interfacing with noisy circuits. In addition to its many features, the device also has a slew rate control input to reduce power consumption.

The application fields of the 74LVCH245ABQ-Q100X are mainly used in applications where efficient signal transmission and low power consumption are required. The uses include bus level translation in different voltage supplies, interfacing of multiple I/O standards, connected CPLDs to ASICs, clock and signal distribution in noisy environment, and multiplexers and demultiplexers. The 74LVCH245ABQ-Q100X is also used for impedance matching, protection of high-speed logic, and hot-swappable operations.

The 74LVCH245ABQ-Q100X consists of eight non-inverting buffers with active LOW output-enable (OE) inputs. Its high-speed transition from output-enable (OE) to high-impedance ensure that high-frequency signals do not feed back into the inputs, which maximizes noise immunity. Each buffer features 25 Ohm series resistors in the outputs for protection against shorts between signal lines.

The working principle of the 74LVCH245ABQ-Q100X is quite simple. The logic input signal is applied to the corresponding buffer inputs and the OE(output enable) signal is applied to all buffer inputs. When the OE signal is LOW , all eight outputs are enabled, allowing the input signal to be passed to the appropriate circuit. Conversely, when OE is HIGH, the outputs of the buffers are placed in a high-impedance state, thus keeping the signal paths open. The 25 Ohm series resistors, incorporated in the outputs of the device, protect the outputs against any possible short circuit between the output lines. The active LOW OE signal ensures that the output of the buffer switches from the high-impedance to the enabled state at a higher speed.

In summary, the 74LVCH245ABQ-Q100X is a high-performance, low-voltage, 8-bit buffer/line driver with 25 Ohm series resistors for protection against short circuits. It is mainly used for applications involving efficient signal transmission and low power consumption. Its active LOW output-enable (OE) ensures that the output of the buffer switches from the high-impedance to the enabled state at a higher speed. Its wide range of applications, along with its excellent performance, makes it an attractive solution for a variety of applications.

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