Texas Instruments
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SN74LS165ADG4
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SN74LS165ADG4

Product Overview

Category

SN74LS165ADG4 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • 8-bit parallel input
  • Serial output
  • Compatible with TTL logic levels
  • Low power consumption
  • High-speed operation

Package

SN74LS165ADG4 is available in a 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of SN74LS165ADG4 lies in its ability to convert parallel data into serial data for efficient transmission and processing.

Packaging/Quantity

SN74LS165ADG4 is typically packaged in reels or tubes, with quantities varying depending on the supplier.

Specifications

  • Supply voltage: 4.75V to 5.25V
  • Operating temperature range: -40°C to 85°C
  • Input voltage high level (VIH): 2V to VCC
  • Input voltage low level (VIL): GND to 0.8V
  • Output voltage high level (VOH): 2.7V (min)
  • Output voltage low level (VOL): 0.5V (max)
  • Maximum clock frequency: 33 MHz

Detailed Pin Configuration

  1. SER (Serial Data Input)
  2. CLK (Clock Input)
  3. GND (Ground)
  4. QH' (Serial Data Output)
  5. DS0 (Parallel Data Input Bit 0)
  6. DS1 (Parallel Data Input Bit 1)
  7. DS2 (Parallel Data Input Bit 2)
  8. DS3 (Parallel Data Input Bit 3)
  9. DS4 (Parallel Data Input Bit 4)
  10. DS5 (Parallel Data Input Bit 5)
  11. DS6 (Parallel Data Input Bit 6)
  12. DS7 (Parallel Data Input Bit 7)
  13. SH/LD (Shift/Load Input)
  14. VCC (Supply Voltage)
  15. QH (Serial Data Output)
  16. NC (No Connection)

Functional Features

  • Parallel data input is latched on the rising edge of the clock signal.
  • The shift/load input allows for shifting or loading of data into the register.
  • Serial data output provides the converted data in a serial format.

Advantages and Disadvantages

Advantages

  • High-speed operation enables efficient data processing.
  • Low power consumption makes it suitable for battery-powered devices.
  • Compatibility with TTL logic levels ensures easy integration into existing systems.
  • Compact SOIC package saves board space.

Disadvantages

  • Limited to 8-bit parallel input, which may not be sufficient for certain applications requiring larger data sets.
  • Not compatible with CMOS logic levels.

Working Principles

SN74LS165ADG4 operates based on the principle of shifting data from parallel to serial format. When the shift/load input is low, the parallel data is loaded into the register. On the rising edge of the clock signal, the loaded data is shifted out in a serial manner.

Detailed Application Field Plans

SN74LS165ADG4 finds applications in various fields, including: 1. Industrial automation: Used for data acquisition and control systems. 2. Communication systems: Enables efficient transmission and reception of data. 3. Consumer electronics: Integrated into devices requiring serial data conversion. 4. Automotive electronics: Utilized in vehicle control units for data processing.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74LS165ADG4 include: - CD4021B: 8-bit parallel-in, serial-out shift register - 74HC165: 8-bit parallel-in, serial-out shift register - SN74HC595: 8-bit serial-in, serial-out shift register with output latches

These alternative models can be considered based on specific requirements and compatibility with the existing system.

Word count: 527 words

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van SN74LS165ADG4 in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of SN74LS165ADG4:

  1. Q: What is SN74LS165ADG4? A: SN74LS165ADG4 is a popular 8-bit parallel-in/serial-out shift register IC (integrated circuit) commonly used in technical solutions.

  2. Q: What is the purpose of using SN74LS165ADG4? A: SN74LS165ADG4 is used to expand the number of input pins available on a microcontroller or other digital devices by converting parallel data into serial data.

  3. Q: How does SN74LS165ADG4 work? A: It has 8 parallel input pins (D0-D7) and a single serial output pin (Q7). When clocked, the inputs are shifted into the register one by one, and the last input appears at the Q7 output.

  4. Q: What is the maximum clock frequency supported by SN74LS165ADG4? A: The maximum clock frequency supported by SN74LS165ADG4 is typically around 25 MHz.

  5. Q: Can I daisy-chain multiple SN74LS165ADG4 ICs together? A: Yes, you can daisy-chain multiple SN74LS165ADG4 ICs together to expand the number of input pins further.

  6. Q: What is the power supply voltage range for SN74LS165ADG4? A: SN74LS165ADG4 operates with a power supply voltage range of 4.75V to 5.25V.

  7. Q: Does SN74LS165ADG4 have any built-in debounce circuitry? A: No, SN74LS165ADG4 does not have any built-in debounce circuitry. External debouncing may be required for noisy input signals.

  8. Q: Can SN74LS165ADG4 be used with both CMOS and TTL logic levels? A: Yes, SN74LS165ADG4 is compatible with both CMOS and TTL logic levels.

  9. Q: What is the typical power consumption of SN74LS165ADG4? A: The typical power consumption of SN74LS165ADG4 is around 10mW.

  10. Q: Are there any specific precautions to consider when using SN74LS165ADG4? A: It is important to ensure that the clock signal is stable and free from noise, as it can affect the reliability of data shifting. Additionally, proper decoupling capacitors should be used to minimize power supply noise.

Please note that these answers are general and may vary depending on the specific application and datasheet specifications of SN74LS165ADG4.