The NXP 74HCT251D is a high-performance, 8-input multiplexer that is part of the 74HCT family of logic devices. This integrated circuit is designed to select one of the eight data inputs to a single output line, making it a versatile component for a wide range of digital applications.
Key Features
- Logic Family: The device is built on the 74HCT (High-speed CMOS) technology which is compatible with TTL levels.
- Input Selection: It features eight input channels, providing the flexibility to choose from multiple data sources.
- Output Enable: The 74HCT251D comes with an output enable function that allows the output to be disconnected from the selected input, thus preventing any potential bus conflict.
- Low Power Consumption: This multiplexer is designed for low power consumption, making it suitable for battery-operated and power-sensitive applications.
- Pin Configuration: It is available in a standard SOIC-16 packaging, which is convenient for surface-mount technology (SMT).
- High Noise Immunity: The device has a high noise immunity characteristic of CMOS devices, ensuring stable operation in electrically noisy environments.
Applications
The 74HCT251D is ideal for use in:
- Data multiplexing
- Signal gating
- Function generation
- Computer peripheral multiplexing
- Control systems
Technical Specifications
Parameter
Value
Supply Voltage (V<sub>CC)
4.5V to 5.5V
Input Voltage (V<sub>I)
0V to 5.5V
Output Voltage (V<sub>O)
0V to V<sub>CC
Propagation Delay Time
Typically 13 ns at V<sub>CC = 5V, C<sub>L = 50 pF
Operating Temperature
-40°C to +125°C
The NXP 74HCT251D is a reliable and efficient solution for digital signal routing and is widely used in both commercial and industrial applications. Its robust design and compatibility with various logic families make it a preferred choice for designers and engineers.
