Quad 2-Input Multiplexers
Manufacturer
Part #
Category
Texas Instruments CD74ACx257/CD74ACT258 SemiconductorsDescription
Texas Instruments CD74ACx257/CD74ACT258 Quad 2-Input Multiplexers are quad 2-input multiplexers with three-state outputs that utilize Advanced CMOS logic technology. The CD74AC257 and CD74ACT257 have non-inverting outputs, while the CD74ACT258 has inverting outputs. They feature a balanced noise immunity at 30% of the supply voltage and operate within a range of 1.5V to 5.5V.
Texas Instruments CD74ACx257/CD74ACT258 Quad 2-Input Multiplexers
Introduction
The Texas Instruments CD74ACx257/CD74ACT258 Quad 2-Input Multiplexers are versatile components designed to streamline data routing in electronic circuits. Utilizing advanced CMOS logic technology, these multiplexers offer efficient performance with three-state outputs, making them ideal for various applications in digital systems.
Part Description
The CD74ACx257/CD74ACT258 series consists of quad 2-input multiplexers that provide either non-inverting (CD74AC257 and CD74ACT257) or inverting (CD74ACT258) outputs. These devices operate within a voltage range of 1.5V to 5.5V and feature balanced noise immunity at 30% of the supply voltage. With a typical propagation delay of just 4.4ns at 5V, they are designed for high-speed applications while maintaining low power consumption. The SCR-latch-up-resistant CMOS process ensures reliability and durability in various operating conditions.

Applications
- Data bus multiplexing
- Microprocessor and memory interface
- Test and diagnostic systems
- Logic function implementation
- Communication systems
- Educational and prototyping use
Industries
- Consumer Electronics
- Telecommunications
- Automotive
- Industrial Automation
- Medical Devices
- Educational Institutions
Usage Ideas
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Data Routing in Microcontroller Projects: Use the CD74AC257 to select between multiple sensor inputs in a microcontroller-based project, allowing for efficient data collection and processing.
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Signal Switching in Communication Systems: Implement the CD74ACT258 in a communication system to switch between different signal paths, enhancing the flexibility of data transmission.
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Prototyping Logic Circuits: Utilize the multiplexers in educational settings to demonstrate logic functions and circuit design, providing hands-on experience with digital electronics.
Conclusion
The Texas Instruments CD74ACx257/CD74ACT258 Quad 2-Input Multiplexers are essential components for anyone working with digital circuits. Their high-speed performance, low power consumption, and versatile applications make them suitable for a wide range of industries and projects. Whether for educational purposes, prototyping, or advanced communication systems, these multiplexers are a reliable choice for efficient data management.