Product Overview: 74HCT157N by NXP Semiconductors

The 74HCT157N is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). Manufactured by NXP Semiconductors, a leader in the electronics industry, this product is part of the 74HCT family, known for its robust performance and compatibility with TTL integrated circuits.

Key Features

• Logic Type: Quad 2-Input Multiplexer
• Package Type: DIP-16 (Dual In-line Package)
• Operating Voltage: 4.5 V to 5.5 V
• Input Level: TTL level
• Output Level: CMOS level
• Propagation Delay: Typically 16 ns
• Power Dissipation: 500 µW

Product Description

The 74HCT157N is designed to multiplex digital signals from four sources to a single common output line, allowing for increased flexibility in data routing and signal processing. The device features four identical 2-input multiplexers with common select and enable inputs, making it a versatile component for various digital applications.

Each multiplexer has two data inputs (nA0 and nA1), one output (nY), a common data select input (nS), and an enable input (nE). The data is passed from the selected input to the output when the enable input is at a low level. If the enable input is high, the output assumes a high impedance state, effectively disconnecting the output from the circuit.

The 74HCT157N operates over a wide voltage range and provides TTL compatibility when operating at a nominal voltage of 5V. The fast propagation delay and low power dissipation make it suitable for high-speed data manipulation and decision-making circuits in a variety of digital systems.

Applications

This multiplexer is ideal for applications that require routing data from multiple sources to a single destination. It is commonly used in:

• Function generators
• Data switching and routing systems
• Signal gating
• Computer peripheral multiplexing
• Control systems

With its durable construction and reliable performance, the NXP 74HCT157N is a solid choice for designers looking for a high-quality multiplexer to incorporate into their digital logic systems.