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SN74ALS166DBR
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SN74ALS166DBR

Product Overview

Category

SN74ALS166DBR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics for parallel-in/serial-out shift register applications.

Characteristics

  • High-speed operation
  • Wide operating voltage range
  • Low power consumption
  • Schottky-clamped inputs for improved noise immunity
  • Compatible with TTL levels

Package

SN74ALS166DBR is available in a 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of SN74ALS166DBR lies in its ability to efficiently convert parallel data into serial output, making it suitable for various digital applications.

Packaging/Quantity

SN74ALS166DBR is typically packaged in reels or tubes, with each reel containing 2500 units.

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to 85°C
  • Input Voltage Levels:
    • High Level (VIH): 2V to VCC
    • Low Level (VIL): GND to 0.8V
  • Output Voltage Levels:
    • High Level (VOH): 2.4V (min)
    • Low Level (VOL): 0.4V (max)
  • Maximum Clock Frequency: 25MHz

Detailed Pin Configuration

  1. SER (Serial Data Input)
  2. CLK (Clock Input)
  3. RCLK (Register Clock Input)
  4. SRCLR (Shift Register Clear Input)
  5. QA-QH (Parallel Outputs)
  6. GND (Ground)
  7. QH' (Serial Output)
  8. VCC (Supply Voltage)

Functional Features

  • Parallel-to-serial data conversion
  • Shift register clear function
  • Serial output for cascading multiple devices
  • Schottky-clamped inputs for improved noise immunity
  • Compatible with TTL logic levels

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient data transfer
  • Wide operating voltage range provides flexibility in various applications
  • Low power consumption helps conserve energy
  • Schottky-clamped inputs enhance noise immunity, ensuring reliable performance
  • Compatibility with TTL levels enables easy integration with existing systems

Disadvantages

  • Limited clock frequency of 25MHz may restrict its use in high-speed applications
  • Availability in only one package type (SOIC) may limit compatibility with certain designs

Working Principles

SN74ALS166DBR operates by receiving parallel data through its input pins (QA-QH) and converting it into serial output (QH'). The clock input (CLK) controls the shifting of data bits within the shift register. The register clock input (RCLK) latches the parallel data into the shift register upon a rising edge of the clock signal. The shift register clear input (SRCLR) resets the shift register to its initial state.

Detailed Application Field Plans

SN74ALS166DBR finds application in various digital systems, including but not limited to: - Serial data transmission - Data storage and retrieval - Data synchronization - Parallel-to-serial conversion - Shift register-based operations

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74ALS166DBR are: - SN74HC166N - CD4015BE - 74HC595

These alternatives can be considered based on specific requirements, availability, and compatibility with the existing system.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74ALS166DBR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74ALS166DBR:

  1. Question: What is SN74ALS166DBR?
    - Answer: SN74ALS166DBR is a 8-bit parallel-in/serial-out shift register IC (integrated circuit) that can be used in various technical solutions.

  2. Question: What is the operating voltage range for SN74ALS166DBR?
    - Answer: The operating voltage range for SN74ALS166DBR is typically between 4.5V and 5.5V.

  3. Question: What is the maximum clock frequency supported by SN74ALS166DBR?
    - Answer: SN74ALS166DBR can support clock frequencies up to 40 MHz.

  4. Question: How many parallel inputs does SN74ALS166DBR have?
    - Answer: SN74ALS166DBR has 8 parallel inputs, labeled as D0 to D7.

  5. Question: Can SN74ALS166DBR be cascaded to increase the number of bits?
    - Answer: Yes, multiple SN74ALS166DBR ICs can be cascaded together to increase the number of bits in the shift register.

  6. Question: What is the purpose of the serial output pin (QH') in SN74ALS166DBR?
    - Answer: The serial output pin (QH') in SN74ALS166DBR provides the shifted data output from the shift register.

  7. Question: Does SN74ALS166DBR have any built-in latches or storage elements?
    - Answer: No, SN74ALS166DBR is a simple shift register without any built-in latches or storage elements.

  8. Question: Can SN74ALS166DBR be used for both serial-to-parallel and parallel-to-serial data conversion?
    - Answer: Yes, SN74ALS166DBR can be used for both serial-to-parallel and parallel-to-serial data conversion depending on the application.

  9. Question: What is the typical power consumption of SN74ALS166DBR?
    - Answer: The typical power consumption of SN74ALS166DBR is around 10mW.

  10. Question: Are there any specific precautions to consider when using SN74ALS166DBR?
    - Answer: It is important to ensure that the voltage levels and clock frequencies are within the specified limits to avoid any damage to the IC. Additionally, proper decoupling capacitors should be used to minimize noise and stabilize the power supply.

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