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74AC251SJ from FAIRCHIP,Fairchild Semiconductor

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74AC251SJ

Manufacturer: FAIRCHIP

8-Input Multiplexer with 3-STATE Output

Partnumber Manufacturer Quantity Availability
74AC251SJ FAIRCHIP 3000 In Stock

Description and Introduction

8-Input Multiplexer with 3-STATE Output The **74AC251SJ** is a high-performance, 8-input multiplexer integrated circuit (IC) manufactured by Fairchild Semiconductor. Designed for digital signal routing applications, this component features a 3-state output, allowing multiple devices to share a common bus without interference. Built using advanced CMOS technology, the 74AC251SJ offers fast switching speeds, low power consumption, and improved noise immunity compared to earlier logic families.  

Key specifications include an 8:1 multiplexer configuration, a wide operating voltage range (2V to 6V), and compatibility with TTL input levels, making it versatile for various digital systems. The 3-state output enables high-impedance (Hi-Z) mode, facilitating efficient bus management in multi-device environments.  

Housed in a compact SOIC-16 package, the 74AC251SJ is suitable for space-constrained applications while maintaining robust performance. Its balanced propagation delays and high drive capability ensure reliable operation in high-speed data selection and routing tasks.  

Common applications include data communication systems, microprocessor interfacing, and digital signal processing. Engineers favor this IC for its reliability, speed, and power efficiency, making it a preferred choice in modern electronic designs.  

For detailed electrical characteristics and timing diagrams, consulting the official datasheet is recommended to ensure proper implementation in circuit designs.

Partnumber Manufacturer Quantity Availability
74AC251SJ NSC 588 In Stock

Description and Introduction

8-Input Multiplexer with 3-STATE Output The 74AC251SJ is a 8-input multiplexer with 3-state outputs, manufactured by National Semiconductor (NSC). Key specifications include:

- **Logic Family:** 74AC
- **Function:** 8-input multiplexer
- **Output Type:** 3-state
- **Supply Voltage Range:** 2V to 6V
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** SOIC-16
- **Propagation Delay:** Typically 5.5 ns at 5V
- **Input Capacitance:** 4.5 pF (typical)
- **Output Current:** ±24 mA
- **High-Level Output Voltage:** 4.4V (min) at 5V supply
- **Low-Level Output Voltage:** 0.1V (max) at 5V supply
- **Power Dissipation:** 500 mW (max)

This device is designed for high-speed, low-power digital applications.

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