CD74HC147NSRE4

Product Overview

• Category: Integrated Circuit
• Use: Encoder/Decoder
• Characteristics: High-Speed, CMOS Logic, 10-Line to 4-Line Priority Encoder
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The CD74HC147NSRE4 is a high-speed CMOS logic integrated circuit that functions as a 10-line to 4-line priority encoder. It encodes the highest priority input line into a binary code on its output lines.
• Packaging/Quantity: The CD74HC147NSRE4 is available in a standard SOIC package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 15 ns (typical)
• Quiescent Current: 4 µA (maximum)

Pin Configuration

The CD74HC147NSRE4 has a total of 16 pins, which are assigned specific functions as follows:

1. A0: Input Line 0
2. A1: Input Line 1
3. A2: Input Line 2
4. A3: Input Line 3
5. A4: Input Line 4
6. A5: Input Line 5
7. A6: Input Line 6
8. A7: Input Line 7
9. A8: Input Line 8
10. A9: Input Line 9
11. GND: Ground
12. EO: Enable Output
13. Y0: Output Line 0
14. Y1: Output Line 1
15. Y2: Output Line 2
16. Y3: Output Line 3

Functional Features

The CD74HC147NSRE4 offers the following functional features:

• High-speed operation, making it suitable for time-critical applications.
• CMOS logic technology ensures low power consumption and compatibility with a wide range of devices.
• 10-line to 4-line priority encoding, allowing the highest priority input line to be encoded into a binary code on the output lines.
• Enable output pin (EO) for controlling the output state.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data processing. - Low power consumption due to CMOS technology. - Compact SOIC package allows for easy integration into various electronic systems. - 10-line to 4-line priority encoding simplifies complex input/output configurations.

Disadvantages: - Limited number of output lines may restrict certain applications requiring more output options. - Requires careful consideration of priority assignment to ensure accurate encoding.

Working Principles

The CD74HC147NSRE4 operates based on the principle of priority encoding. It assigns priority levels to each input line and encodes the highest priority line into a binary code on the output lines. The enable output pin (EO) controls the output state, allowing the encoded output to be enabled or disabled as needed.

Detailed Application Field Plans

The CD74HC147NSRE4 finds applications in various fields where priority encoding is required. Some potential application areas include:

1. Data Communication Systems: Used for encoding priority signals in data transmission systems to ensure efficient data routing.
2. Industrial Automation: Enables prioritization of inputs in control systems, such as PLCs (Programmable Logic Controllers), for effective decision-making.
3. Traffic Control Systems: Utilized in traffic signal controllers to prioritize different traffic conditions and optimize traffic flow.
4. Robotics: Enables encoding of priority signals in robotic systems for efficient task execution and decision-making.

Detailed and Complete Alternative Models

1. CD74HC148NSRE4: 8-Line to 3-Line Priority Encoder
2. CD74HC149NSRE4: 16-Line to 4-Line Priority Encoder
3. CD74HC147M: 10-Line to 4-Line Priority Encoder (Metal Can Package)

These alternative models offer similar functionality to the CD74HC147NSRE4 but may have different pin configurations or package options.

In conclusion, the CD74HC147NSRE4 is a high-speed CMOS logic integrated circuit that serves as a 10-line to 4-line priority encoder. It offers advantages such as high-speed operation, low power consumption, and compact packaging. Its applications range from data communication systems to industrial automation and traffic control systems. Alternative models with varying specifications are also available in the market.