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CD74AC280E
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CD74AC280E

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Arithmetic Logic Unit (ALU)
  • Characteristics: High-speed, low-power consumption
  • Package: 20-pin DIP (Dual In-line Package)
  • Essence: Binary arithmetic operations and logic functions
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Logic Family: AC
  • Number of Inputs: 9
  • Number of Outputs: 4
  • Supply Voltage: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 5 ns (typical)

Detailed Pin Configuration

The CD74AC280E has a total of 20 pins. The pin configuration is as follows:

  1. GND (Ground)
  2. A0 (Input A0)
  3. A1 (Input A1)
  4. A2 (Input A2)
  5. A3 (Input A3)
  6. A4 (Input A4)
  7. A5 (Input A5)
  8. B0 (Input B0)
  9. B1 (Input B1)
  10. B2 (Input B2)
  11. B3 (Input B3)
  12. B4 (Input B4)
  13. B5 (Input B5)
  14. LT (Less Than Output)
  15. EQ (Equal Output)
  16. GT (Greater Than Output)
  17. GND (Ground)
  18. VCC (Power Supply)
  19. OE (Output Enable)
  20. GND (Ground)

Functional Features

The CD74AC280E is designed to perform binary arithmetic operations and logic functions. It has 9 input pins (A0-A5, B0-B5) and 3 output pins (LT, EQ, GT). The LT (Less Than) output is active low when the A inputs are less than the B inputs. The EQ (Equal) output is active low when the A inputs are equal to the B inputs. The GT (Greater Than) output is active low when the A inputs are greater than the B inputs.

Advantages and Disadvantages

Advantages: - High-speed operation - Low-power consumption - Wide supply voltage range - Compact package size

Disadvantages: - Limited number of inputs and outputs - Not suitable for complex arithmetic operations

Working Principles

The CD74AC280E utilizes combinational logic circuits to perform binary arithmetic operations and logic functions. It compares the values of the A and B inputs and generates the appropriate output signals based on the comparison results. The internal circuitry consists of gates, flip-flops, and other components that enable efficient and accurate computation.

Detailed Application Field Plans

The CD74AC280E can be used in various applications that require binary arithmetic operations and logic functions. Some potential application fields include:

  1. Digital calculators
  2. Data processing systems
  3. Arithmetic units in microprocessors
  4. Control systems
  5. Binary comparators

Detailed and Complete Alternative Models

  1. SN74AC280: Similar functionality and specifications, available in different package options.
  2. CD74HC280: Compatible with higher supply voltages, but slower operation.
  3. CD74ACT280: Faster operation and lower power consumption, but limited temperature range.

These alternative models offer similar functionalities to the CD74AC280E but may have differences in terms of speed, power consumption, and compatibility with different supply voltages.

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng CD74AC280E sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of CD74AC280E in technical solutions:

  1. Q: What is CD74AC280E? A: CD74AC280E is a 9-bit magnitude comparator integrated circuit (IC) that can be used in various digital applications.

  2. Q: What is the purpose of CD74AC280E? A: The purpose of CD74AC280E is to compare two 9-bit binary numbers and determine their relative magnitudes.

  3. Q: How does CD74AC280E work? A: CD74AC280E compares the two input numbers bit by bit, starting from the most significant bit (MSB), and generates output signals based on the comparison results.

  4. Q: What are the voltage requirements for CD74AC280E? A: CD74AC280E operates with a supply voltage range of 2V to 6V, making it compatible with both TTL and CMOS logic levels.

  5. Q: Can CD74AC280E handle negative numbers? A: No, CD74AC280E is designed to compare positive binary numbers only. It does not support signed or negative numbers.

  6. Q: What are the typical applications of CD74AC280E? A: CD74AC280E is commonly used in arithmetic circuits, digital counters, data processing systems, and other applications where magnitude comparison is required.

  7. Q: How many inputs and outputs does CD74AC280E have? A: CD74AC280E has nine inputs (A0-A8, B0-B8) for the two 9-bit numbers being compared, and three outputs (EQ, GT, LT) indicating the comparison result.

  8. Q: What is the propagation delay of CD74AC280E? A: The propagation delay of CD74AC280E is typically around 6-10 nanoseconds, depending on the operating conditions.

  9. Q: Can CD74AC280E be cascaded to compare larger numbers? A: Yes, multiple CD74AC280E ICs can be cascaded together to compare larger numbers by connecting the outputs of one IC to the inputs of the next.

  10. Q: Is CD74AC280E a readily available IC? A: Yes, CD74AC280E is a commonly available IC and can be easily obtained from various electronic component suppliers.

Please note that these answers are general and may vary based on specific datasheet information or application requirements.