CD74HCT688M96G4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Comparator
• Characteristics: High-Speed, CMOS Technology
• Package: SOIC-20
• Essence: The CD74HCT688M96G4 is a 8-bit magnitude comparator that performs comparison of two binary numbers and provides outputs indicating the relationship between them.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 15ns (typical)
• Output Current: ±25mA
• Logic Family: HCT

Detailed Pin Configuration

The CD74HCT688M96G4 has a total of 20 pins. Here is the detailed pin configuration:

1. A0: Input A0
2. A1: Input A1
3. A2: Input A2
4. A3: Input A3
5. A4: Input A4
6. A5: Input A5
7. A6: Input A6
8. A7: Input A7
9. B0: Input B0
10. B1: Input B1
11. B2: Input B2
12. B3: Input B3
13. B4: Input B4
14. B5: Input B5
15. B6: Input B6
16. B7: Input B7
17. LT: Less Than Output
18. EQ: Equal Output
19. GT: Greater Than Output
20. GND: Ground

Functional Features

• Performs comparison of two 8-bit binary numbers.
• Outputs indicate whether the first number is less than, equal to, or greater than the second number.
• High-speed operation suitable for time-critical applications.
• Utilizes CMOS technology for low power consumption and high noise immunity.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient processing of binary comparisons. - CMOS technology provides low power consumption and high noise immunity. - Compact SOIC-20 package enables easy integration into various electronic systems.

Disadvantages: - Limited to 8-bit binary comparisons, may not be suitable for larger data sets. - Requires external circuitry for handling overflow conditions in multi-bit comparisons.

Working Principles

The CD74HCT688M96G4 compares two 8-bit binary numbers by examining each corresponding bit. It determines the relationship between the numbers based on the values of these bits. The comparator outputs three signals: LT (Less Than), EQ (Equal), and GT (Greater Than). These signals indicate whether the first number is less than, equal to, or greater than the second number, respectively.

The IC operates using CMOS technology, which ensures low power consumption and high noise immunity. It can operate within a wide supply voltage range of 2V to 6V and has a typical propagation delay of 15ns.

Detailed Application Field Plans

The CD74HCT688M96G4 is commonly used in various digital systems that require binary number comparison. Some specific application fields include:

1. Microcontrollers: Used for comparing input values with reference values in control algorithms.
2. Data Processing Units: Enables sorting and searching operations in databases.
3. Arithmetic Logic Units: Facilitates arithmetic operations such as addition, subtraction, and multiplication.
4. Communication Systems: Assists in error detection and correction processes.

Detailed and Complete Alternative Models

1. SN74LS688: 8-bit Magnitude Comparator with Open Collector Outputs
2. CD54HC688: High-Speed CMOS Logic 8-Bit Magnitude Comparator
3. MC74HCT688A: Octal Magnitude Comparator with Latched Inputs

These alternative models offer similar functionality to the CD74HCT688M96G4 and can be considered as replacements depending on specific requirements.

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