MM74HC251MTC

Product Overview

• Category: Integrated Circuit
• Use: Multiplexer/Demultiplexer
• Characteristics: High-Speed, CMOS Logic, 8-Channel, Non-Inverting
• Package: TSSOP-16
• Essence: The MM74HC251MTC is a multiplexer/demultiplexer IC that allows the selection of one out of eight data inputs and routes it to a single output line.
• Packaging/Quantity: The MM74HC251MTC is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Logic Family: HC
• Number of Channels: 8
• Input Voltage Range: 2V to 6V
• Output Voltage Range: 0V to Vcc
• Propagation Delay Time: 9ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MM74HC251MTC has a TSSOP-16 package with the following pin configuration:

__ __ A1 |1 \__/ 16| Vcc A2 |2 15| Y A3 |3 14| I7 A4 |4 13| I6 A5 |5 MM 12| I5 A6 |6 74 11| I4 A7 |7 HC 10| I3 GND |8 9| I2 ----------

Functional Features

• The MM74HC251MTC is designed to handle high-speed digital signals efficiently.
• It can be used as an 8-channel multiplexer or demultiplexer.
• The non-inverting nature of the IC ensures that the output signal is the same as the selected input signal.
• It operates within a wide voltage range, making it compatible with various digital systems.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data handling. - CMOS logic ensures low power consumption. - Wide operating voltage range provides compatibility with different systems. - Non-inverting nature preserves the integrity of the input signal.

Disadvantages: - Limited to 8 channels, which may not be sufficient for certain applications requiring more inputs/outputs. - Propagation delay time may affect real-time applications.

Working Principles

The MM74HC251MTC operates based on the principle of multiplexing and demultiplexing. It uses internal circuitry to select one out of eight input signals and routes it to the output line. The selection is controlled by the address inputs (A1-A7), and the selected input appears at the output pin (Y). The non-inverting characteristic ensures that the output signal matches the selected input signal.

Detailed Application Field Plans

The MM74HC251MTC finds application in various fields where multiplexing or demultiplexing of digital signals is required. Some potential application areas include:

1. Data communication systems
2. Digital audio/video equipment
3. Industrial automation
4. Instrumentation and measurement devices
5. Telecommunications equipment

Alternative Models

Here are some alternative models that can be considered as alternatives to the MM74HC251MTC:

1. CD74HC251E by Texas Instruments
2. SN74HC251N by Texas Instruments
3. MC74HC251N by ON Semiconductor
4. 74HC251D by NXP Semiconductors

These alternative models offer similar functionality and characteristics, providing options for different manufacturers and availability.

In conclusion, the MM74HC251MTC is a high-speed CMOS logic IC that serves as an 8-channel multiplexer/demultiplexer. Its non-inverting nature, wide voltage range, and compatibility with various systems make it suitable for applications in data communication, audio/video equipment, automation, instrumentation, and telecommunications. Alternative models from different manufacturers provide flexibility in choosing the right IC for specific requirements.