74HC151 8-Input Multiplexer IC is a high-performance CMOS data selector designed to route one of eight digital input signals to a single output line using three select inputs. Widely used in digital logic circuits, embedded systems, and microcontroller-based designs, the 74HC151 offers high speed, low power consumption, and excellent noise immunity, making it a preferred choice for modern electronics applications.
Manufactured using High-Speed CMOS (HC) technology, this IC provides faster switching speeds compared to standard CMOS devices while maintaining low power dissipation. The 74HC151 multiplexer is fully compatible with TTL logic levels, enabling seamless integration with a wide range of digital components.
Key Features of 74HC151 Multiplexer IC
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8-to-1 Data Multiplexer: Selects one of eight input signals and routes it to a single output
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Three Select Lines (S0, S1, S2) for precise input selection
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Active-Low Enable (E̅) input for output control
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High-Speed CMOS Technology for faster switching performance
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Low Power Consumption, ideal for battery-powered and embedded systems
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TTL Compatible Inputs and Outputs
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High Noise Immunity, ensuring reliable signal transmission
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Dual Complementary Outputs (Y and Ȳ) available
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Wide Operating Voltage Range for flexible design integration
The IC is available in standard DIP-16 and SOP-16 packages, making it easy to prototype on breadboards or integrate into compact PCB designs.
Technical Specifications – 74HC151 IC
| Parameter | Specification |
|---|---|
| IC Type | 8-Input Multiplexer |
| Logic Family | High-Speed CMOS (HC) |
| Number of Inputs | 8 |
| Number of Outputs | 2 (True & Complement) |
| Select Inputs | 3 (S0, S1, S2) |
| Enable Input | Active-Low |
| Operating Voltage (Vcc) | 2 V to 6 V |
| Typical Voltage | 5 V |
| Propagation Delay | ~8 ns (typical) |
| Output Drive Capability | ±5.2 mA |
| Operating Temperature | –40°C to +85°C |
| Package Types | DIP-16, SOP-16 |
| Logic Compatibility | TTL, CMOS |
Working Principle of 74HC151
The 74HC151 multiplexer IC uses three select inputs to choose one of the eight data inputs (D0–D7). Based on the binary combination applied to the select pins, the corresponding input is connected to the output. The enable pin (E̅) must be set LOW to activate the output; when HIGH, the output is disabled.
This efficient data routing reduces wiring complexity and allows multiple signals to share a single data path, making the 74HC151 ideal for compact digital designs.
Applications of 74HC151 8-Input Multiplexer IC
The versatility of the 74HC151 makes it suitable for a wide range of digital electronics applications, including:
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Embedded Systems and Microcontroller Projects
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Data Selection and Signal Routing Circuits
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Digital Communication Systems
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ALU and Control Unit Design
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Sensor Data Multiplexing
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FPGA and Logic Trainer Kits
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Industrial Automation Systems
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Educational and Laboratory Experiments
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Memory Addressing and Data Bus Sharing
Why Choose 74HC151 Multiplexer IC?
The 74HC151 IC stands out due to its combination of speed, reliability, and energy efficiency. Compared to older TTL multiplexers, it offers lower power dissipation, higher noise immunity, and better compatibility with modern low-voltage systems. Its compact size and ease of use make it suitable for both beginners and professional designers.
Whether you are building a logic control circuit, designing an embedded system, or teaching digital electronics concepts, the 74HC151 8-Input Multiplexer IC delivers dependable performance and design flexibility.
Buy 74HC151 8-Input Multiplexer IC Today
Enhance your digital circuit designs with this high-speed, low-power CMOS multiplexer, trusted by engineers and students worldwide.
Package Includes:
1 x 74HC151 8-Input Multiplexer IC (DIP-16 Package)
FAQ
1. Where can we buy this 74HC151 8-Input Multiplexer IC?
This product is available online https://aiiottech.in/product/74hc151-8-input-multiplexer-ic/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103
2. When can I get this 74HC151 8-Input Multiplexer IC after placing the order?
RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.
Video Link: 74HC151 8 to 1 Line Multiplexer IC | Working Principle & Practical Testing
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