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DM74LS165N
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DM74LS165N

Product Overview

Category

DM74LS165N belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • 8-bit data storage
  • Serial input and output
  • Parallel data transfer
  • TTL compatible inputs and outputs

Package

DM74LS165N is available in a 16-pin DIP (Dual In-line Package) format.

Essence

The essence of DM74LS165N lies in its ability to store and transfer data in a serial manner while providing parallel access to the stored information.

Packaging/Quantity

DM74LS165N is typically packaged in tubes or trays, with quantities varying depending on the supplier.

Specifications

  • Supply Voltage: 4.75V to 5.25V
  • Operating Temperature Range: -55°C to +125°C
  • Input Voltage High: 2.0V (min), 0.8V (max)
  • Input Voltage Low: 0.8V (min), -0.4V (max)
  • Output Voltage High: 2.7V (min), 3.4V (max)
  • Output Voltage Low: 0.35V (max)

Detailed Pin Configuration

  1. SER (Serial Data Input)
  2. QA (Parallel Data Output A)
  3. QB (Parallel Data Output B)
  4. QC (Parallel Data Output C)
  5. QD (Parallel Data Output D)
  6. QE (Parallel Data Output E)
  7. QF (Parallel Data Output F)
  8. QG (Parallel Data Output G)
  9. VCC (Positive Power Supply)
  10. GND (Ground)
  11. SH/LD (Shift/Load Input)
  12. CLK (Clock Input)
  13. DS (Serial Data Input)
  14. DS (Serial Data Input)
  15. DS (Serial Data Input)
  16. DS (Serial Data Input)

Functional Features

  • Parallel-in, serial-out data transfer
  • Shift/Load control for input/output selection
  • Clock input for synchronization
  • TTL compatible inputs and outputs

Advantages and Disadvantages

Advantages

  • Efficient parallel-to-serial data conversion
  • Easy integration into existing systems
  • Wide operating temperature range
  • Compatibility with TTL logic levels

Disadvantages

  • Limited data storage capacity (8 bits)
  • Requires external clock signal for operation

Working Principles

DM74LS165N operates based on the principle of shifting data from the parallel inputs to the serial output. The shift/load input determines whether the device is in shift mode or load mode. In shift mode, the data is shifted out serially, while in load mode, the parallel inputs are latched and stored.

Detailed Application Field Plans

DM74LS165N finds applications in various fields, including: 1. Industrial automation 2. Data acquisition systems 3. Communication equipment 4. Robotics 5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to DM74LS165N include: 1. SN74HC165N 2. CD74HC165E 3. 74HCT165N 4. MC74HC165AN 5. 74ACT16543DLR

These models offer similar functionality and can be used interchangeably depending on specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de DM74LS165N en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of DM74LS165N in technical solutions:

  1. Q: What is DM74LS165N? A: DM74LS165N is a popular 8-bit parallel-in/serial-out shift register IC (integrated circuit) commonly used in digital electronics.

  2. Q: What is the purpose of using DM74LS165N in technical solutions? A: DM74LS165N is used to expand the number of input/output pins of microcontrollers or other digital devices, allowing for efficient data transfer and control.

  3. Q: How does DM74LS165N work? A: It accepts parallel data inputs and shifts them serially into its internal registers. The shifted data can then be read out sequentially or in parallel.

  4. Q: What is the maximum clock frequency supported by DM74LS165N? A: DM74LS165N can operate at clock frequencies up to 25 MHz.

  5. Q: Can DM74LS165N be cascaded to increase the number of input/output pins? A: Yes, multiple DM74LS165N ICs can be cascaded together to expand the number of input/output pins further.

  6. Q: What is the power supply voltage range for DM74LS165N? A: DM74LS165N operates on a power supply voltage range of 4.75V to 5.25V.

  7. Q: Does DM74LS165N support Schmitt-trigger inputs? A: No, DM74LS165N does not have Schmitt-trigger inputs. It requires clean digital signals for proper operation.

  8. Q: Can DM74LS165N be used with both TTL and CMOS logic levels? A: Yes, DM74LS165N is compatible with both TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels.

  9. Q: What are the typical applications of DM74LS165N? A: DM74LS165N is commonly used in applications such as data acquisition systems, digital counters, shift registers, and parallel-to-serial converters.

  10. Q: Are there any precautions to consider when using DM74LS165N? A: Yes, some precautions include proper decoupling of power supply pins, avoiding excessive input voltage or current, and ensuring correct clock timing for reliable operation.

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