Encyclopedia Entry: 74HCT4051N,112

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multiplexer/Demultiplexer
• Characteristics: High-speed CMOS logic, low power consumption
• Package: DIP-16 (Dual In-line Package with 16 pins)
• Essence: Analog multiplexer/demultiplexer with digital control inputs
• Packaging/Quantity: Available in reels of 2,500 units

Specifications

• Supply Voltage: 2.0V to 6.0V
• Input Voltage Range: Ground to VCC
• Operating Temperature: -40°C to +125°C
• On-State Resistance: 80Ω (typical) at VCC = 4.5V
• Channel Leakage Current: ±100nA (maximum) at VCC = 5.5V
• Propagation Delay Time: 30ns (typical) at VCC = 4.5V

Pin Configuration

The 74HCT4051N,112 IC has a total of 16 pins arranged as follows:

__ __ A0 |1 \__/ 16| VCC A1 |2 15| S0 A2 |3 14| S1 EN |4 13| S2 OUT |5 74HCT 12| INH COM |6 4051N, 11| Z NC |7 112| NC NC |8 9| GND ----------

Functional Features

• The 74HCT4051N,112 is a versatile analog multiplexer/demultiplexer IC.
• It allows for the selection of one input from multiple analog or digital sources.
• The selection is controlled by three address inputs (A0, A1, and A2) and an enable input (EN).
• The output can be connected to a common output line (COM) or disconnected using the inhibit input (INH).
• It provides low ON-state resistance and minimal channel leakage current.

Advantages and Disadvantages

Advantages: - High-speed CMOS logic enables fast switching between channels. - Low power consumption makes it suitable for battery-powered devices. - Wide operating voltage range allows compatibility with various systems. - Compact DIP-16 package facilitates easy integration into circuit designs.

Disadvantages: - Limited number of channels (8) may not suffice for complex applications. - Propagation delay time may introduce slight latency in signal transmission.

Working Principles

• The 74HCT4051N,112 operates based on the principle of analog multiplexing/demultiplexing.
• When the enable input (EN) is high, the address inputs (A0, A1, A2) determine the selected channel.
• The selected channel's input is connected to the common output line (COM) while other channels remain disconnected.
• The inhibit input (INH) can be used to disconnect the output entirely.

Detailed Application Field Plans

The 74HCT4051N,112 finds applications in various fields, including: 1. Audio/Video Systems: Channel selection in audio/video mixers, switchers, and amplifiers. 2. Communication Systems: Signal routing in telecommunication equipment and data switches. 3. Test and Measurement: Multiplexing of test signals in automated testing setups. 4. Industrial Control: Selection of sensor inputs in control systems and data acquisition units. 5. Medical Devices: Switching between different sensors or signal sources in medical equipment.

Detailed and Complete Alternative Models

Some alternative models that serve similar functions to the 74HCT4051N,112 are: - CD4051B: CMOS analog multiplexer/demultiplexer with similar specifications. - DG406DJ: Precision analog multiplexer/demultiplexer with low ON-resistance. - MAX4617: Low-voltage, single-supply analog switch with integrated protection features.

In conclusion, the 74HCT4051N,112 is a versatile IC used for analog multiplexing/demultiplexing. Its high-speed CMOS logic, low power consumption, and compact package make it suitable for various applications in audio/video systems, communication systems, test and measurement, industrial control, and medical devices. While it has limitations in terms of channel count and propagation delay, there are alternative models available to suit specific requirements.