

National Semiconductor
54LS33FMQB
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54LS33FMQB Description
54LS33FMQB Description
The 54LS33FMQB is a high-performance NOR gate Logic IC chip manufactured by National Semiconductor, designed for a wide range of digital applications. This device belongs to the 54LS series and is known for its robust performance and reliability. It features a maximum propagation delay of 22ns at 5V with a maximum load capacitance of 15pF, making it suitable for high-speed digital circuits. The 54LS33FMQB operates within a supply voltage range of 4.5V to 5.5V and is designed for surface mount applications, providing flexibility in PCB design.
54LS33FMQB Features
- Logic Type: NOR Gate
- Number of Circuits: 4
- Number of Inputs per Circuit: 2
- Input Logic Levels:
- Low: 0.7V
- High: 2V
- Output Current:
- High: 100µA
- Low: 12mA
- Quiescent Current: Max 13.8 mA
- Package Type: Bulk
- Mounting Type: Surface Mount
- Features: Open Collector
- Moisture Sensitivity Level (MSL): 3 (168 Hours)
- Compliance:
- ECCN: EAR99
- HTSUS: 8542.39.0001
- REACH Status: Vendor Undefined
- RoHS Status: Not applicable
54LS33FMQB Applications
The 54LS33FMQB is ideal for various applications requiring high-speed digital logic operations. Its NOR gate functionality makes it suitable for use in digital circuits, where it can perform logical operations with minimal delay. The open collector feature allows for flexibility in circuit design, enabling the use of pull-up resistors to achieve desired voltage levels. The device's low quiescent current and high output current capabilities make it suitable for power-sensitive applications and driving higher current loads, respectively.
Specific use cases include:
- Digital signal processing
- Logic control systems
- High-speed communication interfaces
- Industrial automation and control systems
- Consumer electronics requiring compact and efficient logic solutions
Conclusion of 54LS33FMQB
The 54LS33FMQB stands out as a reliable and efficient NOR gate Logic IC chip, offering high-speed performance and versatile mounting options. Its low propagation delay and robust current handling capabilities make it an ideal choice for applications requiring fast and reliable digital logic operations. The open collector feature adds to its flexibility, allowing for a wide range of circuit configurations. With its surface mount design and compliance with industry standards, the 54LS33FMQB is a valuable component for engineers and designers in the electronics industry.



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