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Toshiba Semiconductor and Storage 74VHCT126AFT Environmental and export classification status description

The Toshiba 74VHCT126AFT is a quadruple bus buffer gate with three-state outputs, belonging to the VHCT family of high-speed CMOS logic. It is designed to be compatible with LSTTL outputs, offering high-speed performance with low power consumption. Functions: 1. Quadruple Bus Buffer Gate: The IC includes four buffer gates, each capable of driving a separate bus line. 2. Three-State Outputs: Allows the outputs to be enabled or disabled to effectively disconnect the IC from the bus lines. Applications: 1. Digital Electronics: Used in digital systems for data bus buffering, signal isolation, and driving bus lines. 2. Microcontroller Interfaces: Interface between microcontrollers and other digital components. 3. Memory Expansion: Enable multiple memory devices to share a bus line. Alternative Components: 1. SN74ALS126: A similar quadruple bus buffer gate IC from Texas Instruments. 2. MC74HC126A: A quad buffer gate with three-state outputs from ON Semiconductor. 3. CD74HCT125: A quad buffer gate with high-speed CMOS logic from Texas Instruments. Embedded Modules: The Toshiba 74VHCT126AFT can be integrated into various embedded modules for applications such as digital communication systems, microcontroller boards, interface circuits, and bus line drivers. Related Q&A: 1. Q: What is propagation delay in the Toshiba 74VHCT126AFT, and why is it important? A: Propagation delay refers to the time taken for a change in the input signal to be reflected in the output. For high-speed applications, low propagation delay is critical to ensure accurate data transfer. 2. Q: Can the three-state outputs of the IC be used for bus arbitration in a multi-master system? A: Yes, the three-state outputs can be leveraged for bus arbitration by enabling and disabling the outputs of different ICs to manage data flow in multi-master systems. 3. Q: How does the power consumption of the Toshiba 74VHCT126AFT compare to similar components from other manufacturers? A: The VHCT family is known for its low power consumption characteristics compared to standard CMOS or TTL logic families, making the Toshiba 74VHCT126AFT an energy-efficient choice. 4. Q: What are the voltage requirements and tolerance levels of the IC? A: The Toshiba 74VHCT126AFT operates within a specified voltage range with tolerances for high and low logic levels, ensuring reliable functionality within the specified electrical parameters. 5. Q: Are there any special layout considerations or decoupling requirements when using the Toshiba 74VHCT126AFT in a PCB design? A: It is recommended to follow the manufacturer's guidelines for proper layout and decoupling to minimize noise, improve signal integrity, and ensure stable operation of the IC in the circuit.