74AXP1G125GMH

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Logic - Buffers, Drivers, Receivers, Transceivers

The 74AXP1G125GMH is an integrated buffer chip from Fairchild Semiconductor, intended to be used as a medium-speed level shifter. It features a unique logic sub-system architecture optimized for low-input/low-output signals, and operates with a single 1.3V (±10%) supply voltage. With a propagation delay of only 3 ns, it delivers excellent performance in a wide range of applications, especially those requiring fast level shifting or interfacing between different voltage systems.

The 74AXP1G125GMH is ideal for applications that require fast data transfers between different voltage domains. It is particularly suitable for medium-speed level shifting from 2.5V to 1.8V or from 1.8V to 2.5V. It is also an excellent choice for applications where level shifting from a low-voltage (e.g. 1.2V) is required for compatibility with higher-voltage (3.3V, 5V) systems.

Application Fields

The 74AXP1G125GMH is commonly used in a wide range of applications, each of which require a particular feature set depending on their requirements. In clock distribution applications, the chip can be used to efficiently buffer and amplify signals, while in power-saving systems, its low-power, low-voltage design makes it ideal for reducing power consumption, allowing more devices to be powered without draining the battery. Similarly, the chip can be used as a high-speed level shifter in mixed-voltage data processing and communication systems, which are becoming increasingly common in the current embedded environment.

The 74AXP1G125GMH is also a popular choice for mission-critical systems that require safety and reliability. Its wide range of operating conditions makes it a perfect fit for many extreme situations, where fast, reliable solutions are needed to prevent system failure or data corruption.

Working Principle

The 74AXP1G125GMH is a logic buffer chip, which uses a variety of digital input/output signals to transform and transfer data. Its low-power, low-voltage design is based around a unique logic sub-system architecture, which provides a true, single-ended input/output range of 0.3V to VCC (with an extended range of 3V). This architecture is driven by a primitive dual charge-storage flip-flop circuit, which transfers and amplifies signals while boosting performance and reducing power consumption.

The 74AXP1G125GMH is a non-inverting buffer, meaning that it operates by transferring the logic level of the input directly to the output. This is achieved by the use of an input latch and output driver circuit, which use the dual charge-storage flip-flop mechanism to convert the input signal into a digital code, before driving the output to its proper voltage level. This translates to a conversion time of only 3 ns, making the chip excellent for fast level shifting applications.

The 74AXP1G125GMH is an efficient and cost-effective solution for medium-speed level-shifting or interfacing between different voltage systems. Its low-power, low-voltage design allows it to operate with a single 1.3V (±10%) supply voltage, while its unique logic sub-system architecture provides exceptional performance in the most challenging environments.

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