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。
CD74HC4543EG4
詳細を表示 DataSheets

CD74HC4543EG4

Product Overview

Category

CD74HC4543EG4 belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a BCD-to-Seven Segment Latch/Decoder/Driver.

Characteristics

  • High-speed CMOS logic technology
  • Low power consumption
  • Wide operating voltage range
  • Schmitt-trigger inputs for noise immunity
  • Output current capability: 25mA
  • Operating temperature range: -40°C to +85°C

Package

CD74HC4543EG4 is available in a 16-pin TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of CD74HC4543EG4 lies in its ability to convert binary-coded decimal (BCD) input into a seven-segment display output.

Packaging/Quantity

CD74HC4543EG4 is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Quiescent Supply Current: 1µA
  • Maximum Input Leakage Current: ±1µA
  • Maximum Output Leakage Current: ±1µA
  • Propagation Delay Time: 20ns (typical)
  • Maximum Operating Frequency: 33MHz

Detailed Pin Configuration

  1. BCD A (Input)
  2. BCD B (Input)
  3. BCD C (Input)
  4. BCD D (Input)
  5. Lamp Test (Input)
  6. Blanking (Input)
  7. Strobe (Input)
  8. Ground (GND)
  9. Seven-Segment Output G (Output)
  10. Seven-Segment Output F (Output)
  11. Seven-Segment Output E (Output)
  12. Seven-Segment Output D (Output)
  13. Seven-Segment Output C (Output)
  14. Seven-Segment Output B (Output)
  15. Seven-Segment Output A (Output)
  16. VCC (Supply Voltage)

Functional Features

  • Converts BCD input to seven-segment display output
  • Supports lamp test and blanking functions
  • Strobe input for latching the BCD input
  • Schmitt-trigger inputs for improved noise immunity
  • High-speed operation suitable for time-critical applications

Advantages and Disadvantages

Advantages

  • High-speed CMOS technology allows for fast operation
  • Low power consumption makes it energy-efficient
  • Wide operating voltage range provides flexibility in different applications
  • Schmitt-trigger inputs ensure reliable performance in noisy environments

Disadvantages

  • Limited output current capability may require additional drivers for certain applications
  • Operating temperature range may not be suitable for extreme environments

Working Principles

CD74HC4543EG4 works by taking a BCD input (BCD A, B, C, D) and converting it into a seven-segment display output (A, B, C, D, E, F, G). The strobe input is used to latch the BCD input, while the lamp test and blanking inputs control additional functions. The integrated circuit operates using high-speed CMOS logic technology, ensuring fast and reliable conversion.

Detailed Application Field Plans

CD74HC4543EG4 finds application in various fields, including: 1. Digital clocks and timers 2. Counters and frequency dividers 3. Industrial control systems 4. Instrumentation and measurement devices 5. Consumer electronics, such as calculators and digital displays

Detailed and Complete Alternative Models

Some alternative models that can perform similar functions to CD74HC4543EG4 include: 1. CD4511BCN 2. SN74LS47N 3. HEF4543BP 4. MC14543BCL

These alternative models offer similar BCD-to-seven-segment conversion capabilities and can be considered as substitutes for CD74HC4543EG4 in various applications.

Word count: 536 words

技術ソリューションにおける CD74HC4543EG4 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 CD74HC4543EG4 in technical solutions:

  1. Q: What is CD74HC4543EG4? A: CD74HC4543EG4 is a high-speed CMOS (Complementary Metal-Oxide-Semiconductor) BCD-to-7-segment latch/decoder/driver IC.

  2. Q: What is the purpose of CD74HC4543EG4? A: CD74HC4543EG4 is used to convert binary-coded decimal (BCD) inputs into outputs that can drive a 7-segment display.

  3. Q: How many digits can CD74HC4543EG4 control? A: CD74HC4543EG4 can control up to four digits on a 7-segment display.

  4. Q: What is the maximum frequency at which CD74HC4543EG4 can operate? A: CD74HC4543EG4 can operate at a maximum clock frequency of 25 MHz.

  5. Q: Can CD74HC4543EG4 drive common cathode or common anode displays? A: CD74HC4543EG4 can drive both common cathode and common anode displays, depending on the configuration.

  6. Q: How does CD74HC4543EG4 handle multiplexing? A: CD74HC4543EG4 has an internal multiplexing feature that allows it to sequentially display multiple digits on a single 7-segment display.

  7. Q: What is the voltage supply range for CD74HC4543EG4? A: CD74HC4543EG4 operates with a voltage supply range of 2V to 6V.

  8. Q: Does CD74HC4543EG4 have built-in current limiting resistors? A: No, CD74HC4543EG4 does not have built-in current limiting resistors. External resistors are required to limit the current flowing through the 7-segment display.

  9. Q: Can CD74HC4543EG4 be cascaded to control more than four digits? A: Yes, multiple CD74HC4543EG4 ICs can be cascaded together to control more than four digits on a 7-segment display.

  10. Q: What are some common applications of CD74HC4543EG4? A: CD74HC4543EG4 is commonly used in digital clocks, electronic meters, scoreboards, and other applications that require driving 7-segment displays with BCD inputs.

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