Texas Instruments
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SN74ALS679N
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SN74ALS679N

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Function
  • Characteristics: High-speed, low-power Schottky TTL technology
  • Package: DIP (Dual In-line Package)
  • Essence: 8-bit universal shift/storage register with three-state outputs
  • Packaging/Quantity: Available in tubes or reels, quantity varies depending on supplier

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 Time: 9ns (typical)
  • Power Dissipation: 500mW (max)

Detailed Pin Configuration

The SN74ALS679N has a total of 20 pins, which are assigned as follows:

  1. S0: Shift Control Input
  2. S1: Shift Control Input
  3. S2: Shift Control Input
  4. S3: Shift Control Input
  5. CP: Clock Pulse Input
  6. MR: Master Reset Input
  7. OE: Output Enable Input
  8. QH: Serial Data Output
  9. DS: Serial Data Input
  10. GND: Ground
  11. QA: Parallel Data Output
  12. QB: Parallel Data Output
  13. QC: Parallel Data Output
  14. QD: Parallel Data Output
  15. QE: Parallel Data Output
  16. QF: Parallel Data Output
  17. QG: Parallel Data Output
  18. QH: Parallel Data Output
  19. VCC: Positive Power Supply
  20. NC: No Connection

Functional Features

  • Universal shift and storage register
  • Three-state outputs for bus-oriented applications
  • Parallel and serial data inputs
  • Parallel data outputs
  • Master reset for clearing the register
  • Output enable for controlling the outputs

Advantages and Disadvantages

Advantages: - High-speed operation - Low-power consumption - Versatile shift and storage capabilities - Three-state outputs for bus compatibility

Disadvantages: - Limited voltage range (4.5V to 5.5V) - Relatively high power dissipation

Working Principles

The SN74ALS679N is a universal shift/storage register that can be used in various applications requiring data shifting and storage. It operates based on clock pulses and control inputs to shift data serially or store it in parallel. The three-state outputs allow multiple devices to share a common bus without interference.

Detailed Application Field Plans

The SN74ALS679N can be used in a wide range of applications, including but not limited to: - Data communication systems - Digital signal processing - Microprocessor-based systems - Industrial automation - Instrumentation and measurement equipment - Automotive electronics

Detailed and Complete Alternative Models

  1. SN74ALS677N: 8-bit universal shift/storage register with parallel outputs
  2. SN74ALS678N: 8-bit universal shift/storage register with serial outputs
  3. SN74ALS680N: 10-bit universal shift/storage register with three-state outputs
  4. SN74ALS681N: 10-bit universal shift/storage register with parallel outputs
  5. SN74ALS682N: 10-bit universal shift/storage register with serial outputs

These alternative models offer similar functionality with varying bit widths and output configurations.

Word count: 369 words

רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של SN74ALS679N בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of SN74ALS679N in technical solutions:

  1. Q: What is SN74ALS679N? A: SN74ALS679N is a specific type of integrated circuit (IC) commonly used in digital electronics applications.

  2. Q: What is the purpose of SN74ALS679N? A: SN74ALS679N is a 16-bit binary counter and register that can be used for various functions like frequency division, time delay generation, and event counting.

  3. Q: What is the maximum clock frequency supported by SN74ALS679N? A: The maximum clock frequency supported by SN74ALS679N is typically around 25 MHz.

  4. Q: How many bits does SN74ALS679N have? A: SN74ALS679N is a 16-bit IC, meaning it has 16 individual data bits.

  5. Q: Can SN74ALS679N be used as a standalone component? A: Yes, SN74ALS679N can be used as a standalone component in various digital circuits or as part of a larger system.

  6. Q: What voltage levels does SN74ALS679N support? A: SN74ALS679N supports a wide range of voltage levels, typically between 4.5V and 5.5V.

  7. Q: Does SN74ALS679N require any external components for operation? A: Yes, SN74ALS679N requires an external clock signal and power supply to function properly.

  8. Q: Can SN74ALS679N be cascaded with other counters? A: Yes, SN74ALS679N can be cascaded with other counters to increase the number of bits or achieve more complex counting sequences.

  9. Q: What is the power consumption of SN74ALS679N? A: The power consumption of SN74ALS679N depends on various factors, but it typically falls within a few milliwatts range.

  10. Q: Are there any specific precautions to consider when using SN74ALS679N? A: It is important to ensure proper decoupling and grounding techniques while using SN74ALS679N to minimize noise and ensure reliable operation. Additionally, following the manufacturer's datasheet guidelines is crucial for optimal performance.

Please note that these answers are general and may vary depending on the specific application or context. Always refer to the manufacturer's datasheet for accurate and detailed information.