74HC251D,652

Product Overview

Category

The 74HC251D,652 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for data multiplexing and demultiplexing applications.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL inputs
• Schmitt-trigger action on all inputs

Package

The 74HC251D,652 is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of this product lies in its ability to efficiently multiplex and demultiplex data signals in digital systems.

Packaging/Quantity

The 74HC251D,652 is typically packaged in reels or tubes, with a quantity of 2500 units per reel or 50 units per tube.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: -0.5V to VCC + 0.5V
• Output Voltage: -0.5V to VCC + 0.5V
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 10 ns (max)
• Output Current: ±25 mA

Detailed Pin Configuration

The 74HC251D,652 has 16 pins arranged as follows:

1. A0 - Data input A0
2. A1 - Data input A1
3. A2 - Data input A2
4. GND - Ground
5. Y0 - Multiplexer output Y0
6. Y1 - Multiplexer output Y1
7. Y2 - Multiplexer output Y2
8. Y3 - Multiplexer output Y3
9. S0 - Select input S0
10. S1 - Select input S1
11. OE - Output enable input
12. VCC - Supply voltage
13. B3 - Data input B3
14. B2 - Data input B2
15. B1 - Data input B1
16. B0 - Data input B0

Functional Features

The 74HC251D,652 offers the following functional features:

• 8:1 data multiplexer/demultiplexer
• Non-inverting outputs
• Individual output enable control
• Low power consumption
• High noise immunity
• Wide operating voltage range

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data processing
• Low power consumption reduces energy requirements
• Compatibility with TTL inputs simplifies integration into existing systems
• Schmitt-trigger action on all inputs enhances noise immunity

Disadvantages

• Limited number of inputs and outputs may restrict certain applications
• Propagation delay of 10 ns (max) may impact real-time applications requiring faster response times

Working Principles

The 74HC251D,652 operates based on the principles of digital multiplexing and demultiplexing. It uses select inputs (S0 and S1) to determine which data inputs (A0-A2 or B0-B3) are connected to the outputs (Y0-Y3). The output enable input (OE) controls the state of the outputs.

Detailed Application Field Plans

The 74HC251D,652 finds applications in various fields, including:

1. Data communication systems
2. Digital signal processing
3. Industrial automation
4. Consumer electronics
5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74HC251D,652 include:

1. CD74HC251E
2. SN74HC251N
3. MC74HC251N
4. 74HCT251

These models can be considered as alternatives based on their compatibility, specifications, and availability.

In conclusion, the 74HC251D,652 is a versatile integrated circuit used for data multiplexing and demultiplexing applications. Its high-speed operation, low power consumption, and wide operating voltage range make it suitable for various digital electronics projects. However, its limited number of inputs and outputs may restrict certain applications.