CD74ACT280M

Product Overview

Category

CD74ACT280M belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital systems for arithmetic and logic operations.

Characteristics

• CD74ACT280M is a 9-bit magnitude comparator.
• It operates on a supply voltage range of 4.5V to 5.5V.
• The IC has a low power consumption and high-speed operation.
• It is designed to be compatible with TTL (Transistor-Transistor Logic) inputs.

Package

CD74ACT280M is available in a standard 20-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of CD74ACT280M lies in its ability to compare two 9-bit binary numbers and determine their relative magnitudes.

Packaging/Quantity

The IC is typically sold in reels or tubes, with each reel or tube containing a specific quantity of CD74ACT280M ICs.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±24mA
• Propagation Delay: 6ns (typical)
• Power Dissipation: 500mW (max)

Detailed Pin Configuration

1. A0: Input A, bit 0
2. A1: Input A, bit 1
3. A2: Input A, bit 2
4. A3: Input A, bit 3
5. A4: Input A, bit 4
6. A5: Input A, bit 5
7. A6: Input A, bit 6
8. A7: Input A, bit 7
9. A8: Input A, bit 8
10. B0: Input B, bit 0
11. B1: Input B, bit 1
12. B2: Input B, bit 2
13. B3: Input B, bit 3
14. B4: Input B, bit 4
15. B5: Input B, bit 5
16. B6: Input B, bit 6
17. B7: Input B, bit 7
18. B8: Input B, bit 8
19. GND: Ground
20. VCC: Supply Voltage

Functional Features

• CD74ACT280M compares two 9-bit binary numbers (A and B) and determines their relative magnitudes.
• It has three outputs: EQ (Equal), GT (Greater Than), and LT (Less Than).
• The EQ output is high when A and B are equal, and low otherwise.
• The GT output is high when A is greater than B, and low otherwise.
• The LT output is high when A is less than B, and low otherwise.

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient processing of digital signals.
• Low power consumption helps in reducing overall system energy requirements.
• Compatibility with TTL inputs ensures easy integration into existing systems.

Disadvantages

• Limited to comparing 9-bit binary numbers, which may not be sufficient for certain applications requiring larger data sizes.
• Availability of alternative models with additional features or improved specifications may limit its competitiveness in the market.

Working Principles

CD74ACT280M works by comparing each corresponding bit of the two input numbers (A and B). It starts from the most significant bit (bit 8) and proceeds towards the least significant bit (bit 0). By analyzing the states of these bits, the IC determines the relative magnitudes of A and B.

Detailed Application Field Plans

CD74ACT280M finds applications in various digital systems where comparison of 9-bit binary numbers is required. Some potential application fields include: - Microcontrollers - Digital signal processors - Arithmetic logic units (ALUs) - Data processing units - Communication systems

Detailed and Complete Alternative Models

1. CD74ACT280E: Similar to CD74ACT280M, but operates on a wider supply voltage range of 2V to 6V.
2. CD74ACT280N: Provides the same functionality as CD74ACT280M, but comes in a DIP (Dual Inline Package) format.
3. CD74ACT280PWR: Surface mount version of CD74ACT280M, available in a smaller TSSOP (Thin Shrink Small Outline Package) package.

These alternative models offer similar features and can be used as substitutes for CD74ACT280M depending on specific requirements.

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