74153 Dual 4 Input Multiplexer Ic 74HC153

The 74153 IC (74HC153 / 74LS153) is a dual 4-input multiplexer designed for data routing and logic function implementation in digital systems. Each multiplexer within the IC has four data inputs, two control (select) inputs, and one enable input, allowing selection of one input to propagate to the output. Its TTL-compatible outputs, high-speed switching, and dual-channel design make it suitable for microprocessors, embedded systems, and digital control circuits.

Packaged in a DIP-16, this IC is widely used in digital switching, arithmetic logic units (ALUs), and signal multiplexing applications.

🔹 Applications

• Data selection in digital systems

• Signal routing in microprocessor-based circuits

• Arithmetic and logic unit (ALU) implementations

• Control logic in automation systems

• Switching functions in embedded projects

• Educational and DIY electronics

🔹 Precautions

• Supply voltage for 74LS153: 4.75V–5.25V, for 74HC153: 2V–6V

• Do not exceed 7V absolute max rating

• Ensure proper grounding for stable operation

• Handle carefully to prevent ESD damage

• Avoid prolonged exposure to high soldering heat (<260°C, 10s max)

🔹 Technical Specifications

• IC Type: Dual 4-input Multiplexer

• Logic Families: 74HC153 (CMOS), 74LS153 (TTL)

• Package Type: DIP-16

• Inputs per Multiplexer: 4 data inputs + 2 select inputs + 1 enable input

• Outputs: 2 independent (one per multiplexer)

• Supply Voltage (Vcc):

  • 74LS153: 4.75V – 5.25V

  • 74HC153: 2V – 6V

• Propagation Delay:

  • LS series: ~20ns

  • HC series: ~15ns

• Fan-out: 10 LS-TTL loads (74LS153)

• Output Type: TTL-compatible

• Power Dissipation: Low (LS) / very low (HC CMOS)

• Operating Temperature Range: 0°C to +70°C

• Pin Count: 16 pins

📹 Tutorial Video

Watch 74153 Multiplexer IC Tutorial

🔹 Related Categories

• IC’s

• Electronics Components

• Tools and Accessories

🔹 Summary

The 74153 Dual 4-input Multiplexer IC (74HC153 / 74LS153) is a versatile, high-speed logic device for data selection, signal routing, and logic design applications. With TTL/CMOS compatibility and dual-channel multiplexing, it is widely used in microprocessor systems, ALUs, automation circuits, and educational electronics projects. A key addition to any IC’s collection.