ROHM Semiconductor

BU4081B

BU4081B Description

The BU4081B is a 4-channel AND gate IC featuring 2 inputs per channel, designed for a wide range of digital logic applications. Manufactured by ROHM Semiconductor, this through-hole mounted device is part of the 4000B series and is housed in a tube package. It operates within a supply voltage range of 3V to 16V, making it versatile for various power supply configurations. The BU4081B is known for its low quiescent current of up to 4 µA, which is ideal for energy-efficient designs. It also supports a maximum propagation delay of 50ns at 15V and 50pF, ensuring high-speed performance. The input logic levels are specified as 1.5V to 4V for low and 3.5V to 11V for high, providing compatibility with a broad range of digital systems. This IC is RoHS3 compliant and REACH unaffected, adhering to environmental and safety standards. Despite its obsolete status, the BU4081B remains a reliable choice for legacy systems and specific applications where its unique features are advantageous.

BU4081B Features

• Wide Operating Voltage Range: The BU4081B operates within a 3V to 16V supply voltage range, offering flexibility in power supply requirements.
• Low Quiescent Current: With a maximum quiescent current of 4 µA, this IC is suitable for low-power applications, minimizing energy consumption.
• High-Speed Performance: A maximum propagation delay of 50ns at 15V and 50pF ensures fast signal processing, making it ideal for high-speed digital circuits.
• Robust Input Logic Levels: Input logic levels of 1.5V to 4V for low and 3.5V to 11V for high provide compatibility with a wide range of digital systems.
• Environmental Compliance: The BU4081B is RoHS3 compliant and REACH unaffected, ensuring it meets environmental and safety standards.
• Through-Hole Mounting: The through-hole mounting type facilitates easy integration into printed circuit boards (PCBs) and ensures mechanical stability.
• 4-Channel AND Gate with 2 Inputs per Channel: This configuration allows for complex logic operations, making it suitable for a variety of digital applications.

BU4081B Applications

The BU4081B is well-suited for applications requiring high-speed, low-power digital logic operations. Its 4-channel AND gate with 2 inputs per channel makes it ideal for:

• Digital Signal Processing: The high-speed performance and low quiescent current make it suitable for processing digital signals efficiently.
• Control Systems: The robust input logic levels and wide operating voltage range ensure reliable operation in various control systems.
• Legacy Systems: Despite its obsolete status, the BU4081B remains a reliable choice for maintaining and upgrading legacy systems where its specific features are required.
• Consumer Electronics: The low power consumption and environmental compliance make it suitable for consumer electronics where energy efficiency and safety standards are critical.

Conclusion of BU4081B

The BU4081B is a versatile 4-channel AND gate IC with unique features that make it stand out in the digital logic market. Its wide operating voltage range, low quiescent current, and high-speed performance ensure it meets the demands of various applications. The robust input logic levels and environmental compliance further enhance its suitability for modern electronics. Although marked as obsolete, the BU4081B remains a reliable option for specific applications and legacy systems where its unique advantages are crucial.