CD74HCT251MT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multiplexer/Demultiplexer
• Characteristics: High-speed, CMOS logic, 8-channel multiplexer/demultiplexer
• Package: TSSOP-16
• Essence: Logic IC for data routing and selection
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 15ns (typical)
• Maximum Quiescent Current: 4µA

Detailed Pin Configuration

The CD74HCT251MT has a total of 16 pins arranged as follows:

1. A0 - Channel Select Input 0
2. A1 - Channel Select Input 1
3. A2 - Channel Select Input 2
4. GND - Ground
5. I/O0 - Data Input/Output 0
6. I/O1 - Data Input/Output 1
7. I/O2 - Data Input/Output 2
8. I/O3 - Data Input/Output 3
9. I/O4 - Data Input/Output 4
10. I/O5 - Data Input/Output 5
11. I/O6 - Data Input/Output 6
12. I/O7 - Data Input/Output 7
13. OE - Output Enable
14. Y - Multiplexer Output
15. VCC - Supply Voltage
16. NC - No Connection

Functional Features

• 8-channel multiplexer/demultiplexer with common select inputs (A0, A1, A2)
• High-speed CMOS logic for efficient data routing and selection
• Output enable (OE) pin allows for easy control of the output state
• Low power consumption with a maximum quiescent current of 4µA

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data processing - Versatile multiplexer/demultiplexer functionality - Low power consumption for energy-efficient applications - Compact TSSOP-16 package for space-saving designs

Disadvantages: - Limited to 8 channels, may not be suitable for applications requiring more inputs/outputs - Requires external control signals for proper operation

Working Principles

The CD74HCT251MT is a multiplexer/demultiplexer IC that routes data from multiple input sources to a single output or vice versa. The channel select inputs (A0, A1, A2) determine which input/output channel is active. The output enable (OE) pin controls the output state, allowing for easy enable/disable functionality.

Detailed Application Field Plans

The CD74HCT251MT can be used in various applications, including but not limited to:

1. Data communication systems: Multiplexing/demultiplexing data streams in networking equipment.
2. Audio/video signal routing: Selecting between different audio/video sources in multimedia devices.
3. Industrial automation: Controlling and monitoring multiple sensors and actuators.
4. Test and measurement equipment: Switching between different test signals for analysis purposes.
5. Automotive electronics: Routing signals in automotive control modules.

Detailed and Complete Alternative Models

1. SN74HCT251N: DIP-16 package, similar specifications and functionality.
2. MC74HCT251ADR2G: SOIC-16 package, compatible pin configuration, comparable performance.
3. CD74HC4051M: 8-channel analog multiplexer/demultiplexer, suitable for analog signal routing.

These alternative models offer similar functionality and can be considered as replacements for the CD74HCT251MT in various applications.

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