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MC14543BFG
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MC14543BFG

Product Overview

Category:

The MC14543BFG belongs to the category of integrated circuits (ICs).

Use:

It is commonly used as a BCD-to-seven segment latch/decoder/driver for liquid crystal and LED displays.

Characteristics:

  • Low power consumption
  • High noise immunity
  • Direct drive of common-cathode LED displays
  • Fully static operation

Package:

The MC14543BFG is available in a 16-pin dual in-line package (DIP) or surface mount package.

Essence:

This IC serves as a versatile solution for driving various display types with minimal power consumption.

Packaging/Quantity:

The MC14543BFG is typically packaged in tubes or reels, with quantities varying based on supplier specifications.

Specifications

  • Supply Voltage: 3V to 18V
  • Input Current: 1μA
  • Operating Temperature Range: -55°C to 125°C
  • Output Current: 100mA

Detailed Pin Configuration

  1. A-GND
  2. A-DIGIT IN
  3. A-SEGMENT OUT
  4. B-SEGMENT OUT
  5. B-DIGIT IN
  6. B-GND
  7. C-SEGMENT OUT
  8. C-DIGIT IN
  9. C-GND
  10. D-DIGIT IN
  11. D-SEGMENT OUT
  12. D-GND
  13. LT/BROWSE
  14. BLANKING INHIBIT
  15. VDD
  16. GND

Functional Features

  • BCD-to-seven segment decoding
  • Latching inputs
  • Directly drives LED displays
  • Internal pull-up resistors

Advantages

  • Low power consumption
  • Versatile display driving capabilities
  • Wide operating voltage range

Disadvantages

  • Limited output current capacity
  • Not suitable for high-power applications

Working Principles

The MC14543BFG decodes binary-coded decimal (BCD) input into signals that drive seven-segment displays. It latches the input data and provides the necessary current to illuminate the segments of the display.

Detailed Application Field Plans

The MC14543BFG is widely used in electronic devices such as digital clocks, frequency counters, and panel meters. Its low power consumption and direct drive capability make it suitable for battery-powered applications and portable devices.

Detailed and Complete Alternative Models

  • CD4511B
  • SN74LS47
  • MM74C48

In conclusion, the MC14543BFG is a versatile and efficient IC designed for driving LED and liquid crystal displays in various electronic applications. Its low power consumption and wide operating voltage range make it a popular choice for designers seeking reliable display driving solutions.

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技術ソリューションにおける MC14543BFG 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。

  1. What is the MC14543BFG?

    • The MC14543BFG is a BCD-to-seven segment latch/decoder/driver designed for use in liquid crystal and LED displays.

  2. What are the key features of the MC14543BFG?

    • The key features include BCD input, seven segment outputs, internal pull-up resistors, and low power consumption.

  3. What is the typical application of the MC14543BFG?

    • The MC14543BFG is commonly used in digital panel meters, frequency counters, and other display applications.

  4. How many segments can the MC14543BFG drive?

    • The MC14543BFG can drive up to four seven-segment displays.

  5. What is the supply voltage range for the MC14543BFG?

    • The supply voltage range is typically 3V to 18V.

  6. Does the MC14543BFG have built-in protection features?

    • Yes, it has built-in clamp diodes for transient suppression.

  7. Can the MC14543BFG be cascaded for larger display applications?

    • Yes, multiple MC14543BFGs can be cascaded to drive more than four displays.

  8. What is the maximum output current capability of the MC14543BFG?

    • The maximum output current capability is typically 25mA per segment.

  9. Is the MC14543BFG compatible with CMOS and TTL logic levels?

    • Yes, it is compatible with both CMOS and TTL logic levels.

  10. Are there any specific layout considerations when using the MC14543BFG?

    • It is recommended to minimize trace lengths and provide adequate decoupling capacitors for stable operation.