MC74HC251ADTR2G

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: High-Speed CMOS Logic, 8-Channel, Non-Inverting, Tri-State Output
• Package: TSSOP-16
• Essence: This IC is designed to select one of the eight data inputs and route it to the output based on the control inputs.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 50MHz
• Propagation Delay: 10ns
• Quiescent Current: 4µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MC74HC251ADTR2G has a total of 16 pins. The pin configuration is as follows:

1. A0 - Data Input 0
2. A1 - Data Input 1
3. A2 - Data Input 2
4. A3 - Data Input 3
5. A4 - Data Input 4
6. A5 - Data Input 5
7. A6 - Data Input 6
8. A7 - Data Input 7
9. GND - Ground
10. Y - Output
11. OE - Output Enable
12. S0 - Select Input 0
13. S1 - Select Input 1
14. S2 - Select Input 2
15. VCC - Supply Voltage
16. NC - No Connection

Functional Features

• 8-channel data selector/multiplexer with non-inverting tri-state outputs
• Selection of data input is controlled by three select inputs (S0, S1, and S2)
• Output enable (OE) pin allows the outputs to be disabled when not in use
• High-speed CMOS logic for fast operation
• Low power consumption with a quiescent current of only 4µA

Advantages and Disadvantages

Advantages: - Versatile data selector/multiplexer suitable for various applications - High-speed operation allows for efficient data routing - Tri-state outputs provide flexibility in connecting multiple devices - Low power consumption helps conserve energy

Disadvantages: - Limited to 8 data inputs, may not be suitable for applications requiring more inputs - Propagation delay of 10ns may introduce slight latency in time-critical applications

Working Principles

The MC74HC251ADTR2G operates based on the control inputs (S0, S1, and S2) to select one of the eight data inputs (A0-A7) and route it to the output (Y). The output enable (OE) pin can be used to disable the outputs when not needed. The IC utilizes high-speed CMOS logic, ensuring fast operation while consuming low power.

Detailed Application Field Plans

The MC74HC251ADTR2G can be used in various applications that require data selection or multiplexing. Some potential application fields include:

1. Data communication systems
2. Digital audio/video equipment
3. Industrial automation
4. Automotive electronics
5. Medical devices
6. Test and measurement instruments

Detailed and Complete Alternative Models

1. SN74HC251N - 8-Channel Data Selector/Multiplexer, DIP-16 package
2. CD74HC251E - High-Speed CMOS Logic, 8-Channel Data Selector/Multiplexer, PDIP-16 package
3. 74HCT251 - 8-Channel Data Selector/Multiplexer, SOIC-16 package

These alternative models offer similar functionality to the MC74HC251ADTR2G and can be considered as alternatives based on specific requirements.

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