ON Semiconductor MC74VHC240DT Octal Bus Buffer

The MC74VHC240DT from ON Semiconductor is a high-performance, octal bus buffer designed to provide optimal solutions for voltage translation and buffering needs in a variety of digital applications. This integrated circuit is part of the VHC family, which is known for its advanced high-speed CMOS technology, offering a perfect blend of speed, power efficiency, and noise immunity.

Key Features:

• Logic Type: Octal Bus Buffer
• Number of Channels: 8
• Output Type: 3-State Outputs
• Supply Voltage Range: 2.0V to 5.5V
• High-Speed Performance:
• 5.5 ns Propagation Delay Time (at 5V)
• 2.5 ns Output Transition Time
• Low Power Consumption: 20 µA Quiescent Current
• Input Hysteresis: Provides increased noise immunity and eliminates the need for pull-up/down resistors
• Package: TSSOP-20
• Temperature Range: -55°C to +125°C
• Lead-Free and RoHS Compliant

Product Description:

The MC74VHC240DT is engineered to operate as an octal inverting buffer or line driver with 3-state outputs. Each buffer has a separate output-enable (OE) pin that, when high, places the output in a high-impedance state, allowing for bus-oriented applications. This feature makes the device suitable for interfacing with high-speed microprocessors or memory devices where data bus control is essential.

With its wide operating voltage range, the MC74VHC240DT can be used in systems that require interface with different logic levels, making it highly versatile for mixed-voltage applications. The device’s high-speed performance is characterized by fast propagation delays and output transition times, ensuring minimal signal distortion and rapid response times, which is critical for high-speed data processing and communication systems.

The MC74VHC240DT is also designed with power-saving in mind. Its low quiescent current minimizes power consumption when the device is not switching, contributing to energy-efficient designs. Furthermore, the input hysteresis feature of the MC74VHC240DT provides enhanced noise immunity, which is particularly beneficial in electrically noisy environments or when long PCB traces are involved.

Encased in a slim TSSOP-20 package, the MC74VHC240DT is optimized for space-constrained applications, while still offering the robustness required for industrial temperature ranges. Its lead-free and RoHS compliance ensures that it meets modern environmental standards, making it a responsible choice for both commercial and industrial electronic designs.