ON Semiconductor
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MC74HC595AFEL
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MC74HC595AFEL

Product Overview

Category

MC74HC595AFEL belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics for shift register applications.

Characteristics

  • High-speed operation
  • Wide operating voltage range
  • Low power consumption
  • Schmitt trigger inputs for noise immunity
  • Output current: 6 mA
  • Operating temperature range: -40°C to +85°C

Package

MC74HC595AFEL is available in a small outline package (SOP) with 16 pins.

Essence

The essence of MC74HC595AFEL lies in its ability to efficiently control multiple outputs using a minimal number of microcontroller pins.

Packaging/Quantity

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

Specifications

  • Supply voltage: 2V to 6V
  • Input voltage: -0.5V to VCC + 0.5V
  • Output voltage: -0.5V to VCC + 0.5V
  • Maximum clock frequency: 25 MHz
  • Propagation delay: 13 ns
  • Power dissipation: 500 mW

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 Input)
  6. SH_CP (Shift Register Clock Input)
  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 capability
  • Output enable control for multiplexing applications
  • Master reset for clearing the shift register
  • Schmitt trigger inputs for noise immunity

Advantages and Disadvantages

Advantages

  • Efficient utilization of microcontroller pins
  • High-speed operation
  • Wide operating voltage range
  • Low power consumption
  • Noise immunity due to Schmitt trigger inputs

Disadvantages

  • Limited output current (6 mA)
  • Propagation delay of 13 ns

Working Principles

MC74HC595AFEL operates as a shift register, converting serial input data into parallel outputs. The shift register is controlled by clock signals, allowing the data to be shifted through the register. The parallel outputs can be latched and held using the storage register clock input. The product also features an output enable pin for multiplexing applications and a master reset pin for clearing the shift register.

Detailed Application Field Plans

MC74HC595AFEL finds extensive use in various digital electronics applications, including: - LED matrix displays - Seven-segment displays - Multiplexed LED displays - Data storage and retrieval systems - Serial-to-parallel data conversion - Address decoding circuits

Detailed and Complete Alternative Models

  1. SN74HC595N: Similar shift register IC with DIP package
  2. CD74HC595E: Equivalent shift register IC with SOIC package
  3. 74HCT595: Compatible shift register IC with TTL logic levels

These alternative models offer similar functionality and can be used as substitutes for MC74HC595AFEL depending on specific requirements.

Word count: 533 words

Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням MC74HC595AFEL у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of MC74HC595AFEL in technical solutions:

  1. Q: What is MC74HC595AFEL? A: MC74HC595AFEL is a popular 8-bit shift register with output latches, commonly used in digital electronics projects.

  2. Q: How does MC74HC595AFEL work? A: It takes in serial data and shifts it through its internal registers. The shifted data can then be latched onto the outputs for parallel output.

  3. Q: What are the typical applications of MC74HC595AFEL? A: MC74HC595AFEL is often used for expanding the number of output pins on microcontrollers, driving multiple LEDs or other digital devices, and controlling various digital circuits.

  4. Q: Can MC74HC595AFEL be used with both 3.3V and 5V systems? A: Yes, MC74HC595AFEL is compatible with both 3.3V and 5V systems, making it versatile for different project requirements.

  5. Q: How many output pins does MC74HC595AFEL have? A: MC74HC595AFEL has 8 output pins, which can be individually controlled.

  6. Q: Can MC74HC595AFEL be daisy-chained to control more than 8 outputs? A: Yes, multiple MC74HC595AFEL chips can be daisy-chained together to control a larger number of outputs using serial data cascading.

  7. Q: What is the maximum clock frequency supported by MC74HC595AFEL? A: MC74HC595AFEL can operate at a maximum clock frequency of 25 MHz.

  8. Q: Does MC74HC595AFEL have built-in protection features? A: MC74HC595AFEL has built-in overvoltage and electrostatic discharge (ESD) protection, ensuring its reliability in various environments.

  9. Q: Can MC74HC595AFEL be used with both CMOS and TTL logic levels? A: Yes, MC74HC595AFEL is compatible with both CMOS and TTL logic levels, making it suitable for a wide range of digital systems.

  10. Q: Are there any limitations to consider when using MC74HC595AFEL? A: One limitation is that MC74HC595AFEL can only sink current from the outputs, so it is not suitable for driving high-current loads directly. External drivers or transistors may be required for such applications.

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