CD74HCT257MG4

Product Overview

• Category: Integrated Circuit
• Use: Logic Multiplexer
• Characteristics: High-Speed, CMOS Technology
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: CD74HCT257MG4 is a logic multiplexer integrated circuit that allows multiple input signals to be selected and routed to a single output line.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage: 2V - 6V
• Logic Family: HCT (High-Speed CMOS)
• Number of Inputs: 4
• Number of Outputs: 1
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 15 ns (typical)

Detailed Pin Configuration

The CD74HCT257MG4 has a total of 16 pins. The pin configuration is as follows:

1. A Input 1
2. B Input 1
3. C Input 1
4. D Input 1
5. GND (Ground)
6. Y Output
7. E Enable Input
8. F Enable Input
9. D Input 2
10. C Input 2
11. B Input 2
12. A Input 2
13. VCC (Power Supply)
14. NC (No Connection)
15. NC (No Connection)
16. NC (No Connection)

Functional Features

• Logic multiplexing: Allows selection of one of the four input lines to be routed to the output line.
• High-speed operation: Utilizes HCT technology for fast switching times.
• CMOS compatibility: Can interface with other CMOS devices seamlessly.
• Low power consumption: Operates at low supply voltages, reducing power consumption.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick signal routing. - CMOS compatibility ensures easy integration with other devices. - Low power consumption makes it suitable for battery-powered applications.

Disadvantages: - Limited number of inputs and outputs may not be suitable for complex multiplexing tasks. - Propagation delay may introduce timing issues in certain applications.

Working Principles

The CD74HCT257MG4 is a logic multiplexer that operates based on the principle of selecting one input line from multiple options and routing it to the output line. The selection is controlled by the enable inputs (E and F). When both enable inputs are high, the multiplexer is enabled, and the selected input is passed to the output. The A, B, C, and D inputs determine which input line is selected.

Detailed Application Field Plans

The CD74HCT257MG4 can be used in various applications where logic multiplexing is required. Some potential application fields include:

1. Data communication systems
2. Industrial automation
3. Audio/video equipment
4. Automotive electronics
5. Consumer electronics

Detailed and Complete Alternative Models

1. SN74HCT257: Similar logic multiplexer IC from Texas Instruments.
2. MC74HCT257: Logic multiplexer IC from ON Semiconductor.
3. 74HC257: CMOS logic multiplexer IC from NXP Semiconductors.

These alternative models offer similar functionality and can be considered as substitutes for the CD74HCT257MG4.

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