Texas Instruments
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SN74LS166AN
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SN74LS166AN

Product Overview

Category

SN74LS166AN belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a parallel-in, serial-out shift register.

Characteristics

  • Low-power Schottky (LS) technology
  • 8-bit data storage
  • Serial data input and output
  • Parallel data inputs
  • Asynchronous clear input
  • Cascadable for larger word sizes

Package

SN74LS166AN is available in a 16-pin DIP (Dual In-line Package) format.

Essence

The essence of SN74LS166AN lies in its ability to store and shift data in a serial manner, making it suitable for various applications requiring data manipulation.

Packaging/Quantity

SN74LS166AN is typically packaged in tubes or reels, with quantities varying based on customer requirements.

Specifications

  • Supply voltage: 4.75V to 5.25V
  • Operating temperature range: -40°C to 85°C
  • Input voltage high level (VIH): 2V min
  • Input voltage low level (VIL): 0.8V max
  • Output voltage high level (VOH): 2.7V min
  • Output voltage low level (VOL): 0.5V max
  • Maximum clock frequency: 30MHz

Detailed Pin Configuration

  1. Clock (CLK)
  2. Serial Data Input (DSI)
  3. Parallel Data Inputs (D0-D7)
  4. Asynchronous Clear (CLR)
  5. Serial Data Output (DSO)
  6. Parallel Enable (PE)
  7. Clock Enable (CE)
  8. Ground (GND)
  9. Parallel Data Outputs (Q0-Q7)
  10. VCC (+5V)

Functional Features

  • Parallel-In, Serial-Out Operation: Allows parallel data to be loaded into the shift register and shifted out serially.
  • Asynchronous Clear Input: Clears the shift register asynchronously, setting all outputs to a low logic level.
  • Cascadable: Multiple SN74LS166AN devices can be cascaded together to create larger word sizes.

Advantages and Disadvantages

Advantages

  • Low-power consumption due to LS technology
  • Versatile for various applications requiring data manipulation
  • Easy integration with other ICs

Disadvantages

  • Limited maximum clock frequency compared to some modern shift registers
  • Requires external components for proper operation

Working Principles

SN74LS166AN operates based on the principle of shifting data in a serial manner. The clock signal controls the shifting process, while the parallel inputs allow loading of data into the shift register. The serial output provides the shifted data, and the clear input resets the register when activated.

Detailed Application Field Plans

SN74LS166AN finds applications in various fields, including: 1. Data communication systems 2. Industrial automation 3. Digital displays 4. Serial-to-parallel conversion 5. Data storage and retrieval systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74LS166AN include: 1. CD4015BE 2. 74HC165 3. CD74HC166E 4. SN74HC595N 5. CD4021BE

These alternatives can be considered based on specific requirements and compatibility with existing systems.

Word count: 423 words

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af SN74LS166AN i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of SN74LS166AN:

  1. Q: What is SN74LS166AN? A: SN74LS166AN is a 8-bit parallel-in/serial-out shift register IC (integrated circuit) commonly used in digital electronics.

  2. Q: What is the purpose of SN74LS166AN? A: SN74LS166AN is used to convert parallel data inputs into serial data output, making it useful for applications such as data storage, data transfer, and control systems.

  3. Q: How many parallel inputs does SN74LS166AN have? A: SN74LS166AN has 8 parallel inputs, labeled D0 to D7.

  4. Q: Can SN74LS166AN be cascaded to increase the number of inputs? A: Yes, multiple SN74LS166AN ICs can be cascaded together to increase the number of parallel inputs.

  5. Q: What is the clock input in SN74LS166AN used for? A: The clock input (CLK) is used to synchronize the shifting of data from the parallel inputs to the serial output.

  6. Q: How does SN74LS166AN handle data input when the clock is not active? A: When the clock is not active, the data inputs are latched and held until the next clock pulse.

  7. Q: What is the serial output (QH) in SN74LS166AN used for? A: The serial output provides the shifted data in a serial format, which can be fed into other devices or circuits.

  8. Q: What is the maximum clock frequency supported by SN74LS166AN? A: SN74LS166AN can typically operate at clock frequencies up to 25 MHz.

  9. Q: What is the power supply voltage range for SN74LS166AN? A: SN74LS166AN operates with a power supply voltage range of 4.75V to 5.25V.

  10. Q: Can SN74LS166AN be used in both TTL and CMOS logic systems? A: Yes, SN74LS166AN is compatible with both TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic systems.

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