Texas Instruments
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
CD74HC595EG4
詳細を表示 DataSheets

CD74HC595EG4

Product Overview

Category

CD74HC595EG4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics and microcontroller-based projects for data storage and serial-to-parallel conversion.

Characteristics

  • High-speed operation
  • Wide operating voltage range
  • Low power consumption
  • Compatibility with various logic levels
  • Serial input and parallel output functionality

Package

CD74HC595EG4 is available in a 16-pin TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of CD74HC595EG4 lies in its ability to expand the number of output pins of a microcontroller or shift register using a minimal number of control lines.

Packaging/Quantity

CD74HC595EG4 is typically sold in reels, with each reel containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer and supplier.

Specifications

  • Supply Voltage: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Output Current: 6mA
  • Maximum Clock Frequency: 25MHz
  • Number of Output Pins: 8

Detailed Pin Configuration

  1. GND (Ground)
  2. SER (Serial Data Input)
  3. RCLK (Register Clock)
  4. SRCLK (Shift Register Clock)
  5. OE (Output Enable)
  6. QA (Parallel Output A)
  7. QB (Parallel Output B)
  8. QC (Parallel Output C)
  9. QD (Parallel Output D)
  10. QE (Parallel Output E)
  11. QF (Parallel Output F)
  12. QG (Parallel Output G)
  13. QH (Parallel Output H)
  14. VCC (Supply Voltage)

Functional Features

  • Serial-to-parallel conversion: CD74HC595EG4 allows serial data to be converted into parallel output signals.
  • Cascading capability: Multiple CD74HC595EG4 ICs can be connected in series to expand the number of output pins.
  • Output enable control: The OE pin enables or disables the outputs, providing flexibility in controlling the timing of data transfer.

Advantages and Disadvantages

Advantages

  • Compact size and low power consumption make it suitable for portable devices.
  • High-speed operation allows for efficient data transfer.
  • Compatibility with various logic levels ensures compatibility with different microcontrollers and systems.

Disadvantages

  • Limited number of output pins (8) compared to other shift registers.
  • Lack of built-in latches may require additional circuitry for certain applications.

Working Principles

CD74HC595EG4 operates based on the principle of serial-in, parallel-out shift registers. It receives serial data through the SER pin and shifts it internally using the SRCLK signal. The RCLK signal is used to latch the shifted data into the output register. When the OE pin is enabled, the parallel output signals are available at the respective output pins.

Detailed Application Field Plans

CD74HC595EG4 finds applications in various fields, including but not limited to: 1. LED matrix displays 2. Seven-segment displays 3. Multiplexing multiple input/output devices 4. Data storage and retrieval systems 5. Control panels and user interfaces

Detailed and Complete Alternative Models

Some alternative models that serve similar purposes to CD74HC595EG4 include: 1. 74HC595 2. SN74HC595 3. M74HC595 4. CD4094 5. TPIC6B595

These alternatives offer comparable functionality and can be used as replacements depending on specific requirements.

Word count: 515 words

技術ソリューションにおける CD74HC595EG4 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of CD74HC595EG4 in technical solutions:

  1. Q: What is CD74HC595EG4? A: CD74HC595EG4 is a high-speed CMOS shift register with output latches. It can be used to expand the number of outputs in microcontroller-based systems.

  2. Q: How many outputs does CD74HC595EG4 have? A: CD74HC595EG4 has 8 outputs that can be individually controlled.

  3. Q: Can CD74HC595EG4 be used to drive LEDs? A: Yes, CD74HC595EG4 is commonly used to drive LEDs by connecting the outputs to the LED cathodes and using current-limiting resistors.

  4. Q: What is the maximum clock frequency for CD74HC595EG4? A: The maximum clock frequency for CD74HC595EG4 is typically around 25 MHz.

  5. Q: Can CD74HC595EG4 be cascaded to increase the number of outputs? A: Yes, multiple CD74HC595EG4 chips can be cascaded together to increase the number of outputs in a system.

  6. Q: Does CD74HC595EG4 require external power supply? A: Yes, CD74HC595EG4 requires an external power supply typically ranging from 2V to 6V.

  7. Q: What is the maximum current that CD74HC595EG4 can sink/source per output? A: CD74HC595EG4 can typically sink or source up to 25mA per output.

  8. Q: Can CD74HC595EG4 be used with both 3.3V and 5V microcontrollers? A: Yes, CD74HC595EG4 is compatible with both 3.3V and 5V microcontrollers as it has CMOS inputs.

  9. Q: Can CD74HC595EG4 be used for driving other types of loads besides LEDs? A: Yes, CD74HC595EG4 can be used to drive various loads such as relays, transistors, or even small motors.

  10. Q: Are there any limitations to the number of CD74HC595EG4 chips that can be cascaded together? A: The number of CD74HC595EG4 chips that can be cascaded together is practically limited by factors like clock frequency, power supply voltage, and signal integrity. However, it is common to cascade up to 8-16 chips without any issues.

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