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CD74HC273E

CD74HC273E

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Flip-Flop
  • Characteristics: High-Speed, Octal D-Type, Positive-Edge Triggered, 3-State Output
  • Package: 20-Pin Plastic Dual In-Line Package (PDIP)
  • Essence: The CD74HC273E is a versatile flip-flop IC that can store and transfer data in digital systems.
  • Packaging/Quantity: Available in tubes of 25 units or reels of 2,000 units.

Specifications

The CD74HC273E has the following specifications:

  • Supply Voltage Range: 2V to 6V
  • High-Level Input Voltage: 2V
  • Low-Level Input Voltage: 0.8V
  • Output Current: ±6mA
  • Propagation Delay: 15ns (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HC273E has a total of 20 pins, which are assigned specific functions as follows:

  1. CLR (Clear) - Active LOW clear input
  2. D0 (Data Input 0) - Data input for flip-flop 0
  3. D1 (Data Input 1) - Data input for flip-flop 1
  4. D2 (Data Input 2) - Data input for flip-flop 2
  5. D3 (Data Input 3) - Data input for flip-flop 3
  6. D4 (Data Input 4) - Data input for flip-flop 4
  7. D5 (Data Input 5) - Data input for flip-flop 5
  8. D6 (Data Input 6) - Data input for flip-flop 6
  9. D7 (Data Input 7) - Data input for flip-flop 7
  10. GND (Ground) - Ground reference
  11. Q0 (Output 0) - Output of flip-flop 0
  12. Q1 (Output 1) - Output of flip-flop 1
  13. Q2 (Output 2) - Output of flip-flop 2
  14. Q3 (Output 3) - Output of flip-flop 3
  15. Q4 (Output 4) - Output of flip-flop 4
  16. Q5 (Output 5) - Output of flip-flop 5
  17. Q6 (Output 6) - Output of flip-flop 6
  18. Q7 (Output 7) - Output of flip-flop 7
  19. CP (Clock Pulse) - Positive-edge clock pulse input
  20. VCC (Supply Voltage) - Positive supply voltage

Functional Features

The CD74HC273E offers the following functional features:

  • Octal Flip-Flop: The IC consists of eight individual D-type flip-flops, allowing it to store and transfer data in parallel.
  • Positive-Edge Triggered: The flip-flops are triggered by a positive-edge clock pulse, ensuring accurate data capture.
  • 3-State Output: The outputs can be put into a high-impedance state, enabling multiple devices to share a common bus.

Advantages and Disadvantages

Advantages of the CD74HC273E include:

  • High-speed operation
  • Versatile octal flip-flop functionality
  • Wide operating voltage range
  • 3-state output capability

Disadvantages of the CD74HC273E include:

  • Limited temperature range (-40°C to +85°C)
  • Requires external clock signal for proper operation

Working Principles

The CD74HC273E operates based on the principles of digital logic. When a positive-edge clock pulse is received at the CP pin, the data present at the D0-D7 inputs is transferred to the corresponding Q0-Q7 outputs. The CLR input can be used to clear all flip-flops simultaneously.

Detailed Application Field Plans

The CD74HC273E finds applications in various digital systems where data storage and transfer are required. Some potential application fields include:

  1. Microcontrollers: Used for storing and transferring data between microcontroller units.
  2. Digital Communication Systems: Employed in data buffering and synchronization circuits.
  3. Memory Addressing: Utilized for address decoding and multiplexing in memory systems.
  4. Data Processing Units: Integrated into arithmetic logic units (ALUs) for temporary data storage.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the CD74HC273E are:

  1. SN74HC273N: Similar octal flip-flop IC from Texas Instruments.
  2. MC74HC273AN: Octal D-type flip-flop IC

قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق CD74HC273E في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of CD74HC273E in technical solutions:

  1. Q: What is CD74HC273E? A: CD74HC273E is a high-speed octal D-type flip-flop with reset, commonly used in digital circuits.

  2. Q: What is the purpose of CD74HC273E? A: CD74HC273E is used to store and manipulate binary data in various digital applications.

  3. Q: What is the maximum operating voltage for CD74HC273E? A: The maximum operating voltage for CD74HC273E is typically 6V.

  4. Q: How many flip-flops are there in CD74HC273E? A: CD74HC273E consists of 8 flip-flops, making it an octal (8-bit) device.

  5. Q: What is the clock input frequency range for CD74HC273E? A: The clock input frequency range for CD74HC273E is typically between 0Hz and 25MHz.

  6. Q: Can CD74HC273E be used in both synchronous and asynchronous applications? A: Yes, CD74HC273E can be used in both synchronous and asynchronous applications depending on the circuit design.

  7. Q: What is the power supply voltage range for CD74HC273E? A: The power supply voltage range for CD74HC273E is typically between 2V and 6V.

  8. Q: Does CD74HC273E have a reset function? A: Yes, CD74HC273E has a reset pin that allows all flip-flops to be cleared simultaneously.

  9. Q: What is the output drive capability of CD74HC273E? A: CD74HC273E has a high output drive capability, typically around 4mA.

  10. Q: Can CD74HC273E be cascaded to increase the number of flip-flops? A: Yes, CD74HC273E can be cascaded by connecting the output of one chip to the input of another, allowing for expansion of the number of flip-flops.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for CD74HC273E.