74153 Dual 4 Input Multiplexer Ic 74HC153 74LS153

The 74153 IC (available as 74HC153 / 74LS153) is a Dual 4-to-1 Multiplexer in a DIP-16 package. Each multiplexer has four data inputs, two select inputs, and one enable input. It is widely used in digital systems for logic selection, data routing, and signal multiplexing.

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

🔹 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.