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CD74HC595NSR
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CD74HC595NSR

Product Overview

Category

CD74HC595NSR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used as a shift register and output latch in various electronic applications.

Characteristics

  • High-speed operation
  • Wide operating voltage range
  • Low power consumption
  • Compatibility with TTL inputs
  • Output current capability: 6 mA
  • Schmitt-trigger action on all inputs

Package

CD74HC595NSR is available in a small-outline package (SOIC) with 16 pins.

Essence

The essence of CD74HC595NSR lies in its ability to efficiently control multiple outputs using minimal input pins.

Packaging/Quantity

This product is typically packaged in reels, containing a quantity of 2500 units per reel.

Specifications

  • Supply Voltage Range: 2 V to 6 V
  • Input Voltage Range: 0 V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Clock Frequency: 25 MHz
  • Output Current: 6 mA

Detailed Pin Configuration

  1. QH' (Serial Output)
  2. QH (Serial Output)
  3. DS (Serial Data Input)
  4. OE (Output Enable)
  5. ST_CP (Storage Register Clock)
  6. SH_CP (Shift Register Clock)
  7. MR (Master Reset)
  8. GND (Ground)
  9. Q0 (Parallel Output)
  10. Q1 (Parallel Output)
  11. Q2 (Parallel Output)
  12. Q3 (Parallel Output)
  13. Q4 (Parallel Output)
  14. Q5 (Parallel Output)
  15. Q6 (Parallel Output)
  16. VCC (Supply Voltage)

Functional Features

  • Serial-to-parallel data conversion
  • Cascadable for expanding output capabilities
  • Latching of data for simultaneous output control
  • Output enable/disable functionality
  • Master reset for clearing all outputs

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient data transfer.
  • Wide operating voltage range provides flexibility in various applications.
  • Low power consumption contributes to energy efficiency.
  • Compatibility with TTL inputs simplifies integration with existing systems.
  • Schmitt-trigger action on all inputs ensures reliable signal processing.

Disadvantages

  • Limited output current capability may restrict usage in certain high-power applications.
  • Lack of built-in protection features may require additional circuitry for robustness.

Working Principles

CD74HC595NSR operates as a shift register and output latch. It receives serial data through the DS pin and shifts it into an internal shift register upon each rising edge of the SHCP clock input. The data is then latched into a storage register upon a rising edge of the STCP clock input. The parallel outputs (Q0-Q7) reflect the stored data, which can be simultaneously controlled by the OE pin. The MR pin allows for a master reset, clearing all outputs to a predefined state.

Detailed Application Field Plans

CD74HC595NSR finds extensive application in various electronic systems, including but not limited to: - LED matrix displays - Seven-segment displays - Multiplexed data transmission - Data storage and retrieval systems - Serial-to-parallel data conversion - Addressable latch systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to CD74HC595NSR include: - SN74HC595N - MC74HC595AN - 74HC595D

These alternatives can be considered based on specific requirements and availability.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de CD74HC595NSR en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of CD74HC595NSR:

  1. Q: What is CD74HC595NSR? A: CD74HC595NSR is a shift register integrated circuit (IC) that can be used to expand the number of digital outputs in a microcontroller-based system.

  2. Q: How many digital outputs can CD74HC595NSR provide? A: CD74HC595NSR can provide 8 additional digital outputs, which can be controlled using only 3 pins from the microcontroller.

  3. Q: Can CD74HC595NSR be used with both 3.3V and 5V microcontrollers? A: Yes, CD74HC595NSR is compatible with both 3.3V and 5V microcontrollers, making it versatile for various applications.

  4. Q: How does CD74HC595NSR work? A: CD74HC595NSR works by shifting in serial data and then latching it to parallel outputs. This allows multiple outputs to be controlled using a single serial data line.

  5. Q: Can CD74HC595NSR be cascaded to control more than 8 outputs? A: Yes, CD74HC595NSR can be cascaded together to control even more outputs. By connecting the serial output of one IC to the serial input of another, you can expand the number of outputs exponentially.

  6. Q: What is the maximum clock frequency supported by CD74HC595NSR? A: CD74HC595NSR can support clock frequencies up to 25 MHz, allowing for fast data transfer and response times.

  7. Q: Can CD74HC595NSR be used to drive high-power devices like motors or relays? A: No, CD74HC595NSR is not designed to directly drive high-power devices. It is best suited for driving LEDs, displays, or other low-power digital components.

  8. Q: Does CD74HC595NSR require external components for operation? A: Yes, CD74HC595NSR requires a few external components like resistors and capacitors for proper operation and noise suppression.

  9. Q: Can CD74HC595NSR be used in both prototyping and production applications? A: Yes, CD74HC595NSR is commonly used in both prototyping and production applications due to its ease of use and cost-effectiveness.

  10. Q: Are there any alternative ICs similar to CD74HC595NSR? A: Yes, there are other shift register ICs available in the market, such as 74HC595, TPIC6B595, and SN74HC595, which offer similar functionality with slight variations.

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