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MC14549BCPG
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MC14549BCPG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Digital Logic
  • Characteristics: BCD-to-Seven Segment Latch/Decoder/Driver
  • Package: Ceramic Dual In-Line Package (PDIP)
  • Essence: Converts Binary-Coded Decimal (BCD) input to a 7-segment display output
  • Packaging/Quantity: Available in tubes, reels, or trays

Specifications

  • Supply Voltage Range: 3V to 18V
  • Input Compatibility: CMOS, TTL
  • Output Current: 25mA per segment
  • Operating Temperature Range: -55°C to +125°C
  • Number of Pins: 16

Detailed Pin Configuration

  1. VDD - Positive Power Supply
  2. A - BCD Input A
  3. B - BCD Input B
  4. C - BCD Input C
  5. D - BCD Input D
  6. LT - Lamp Test Input
  7. LE - Latch Enable Input
  8. BL - Blanking Input
  9. a - Seven Segment Output a
  10. b - Seven Segment Output b
  11. c - Seven Segment Output c
  12. d - Seven Segment Output d
  13. e - Seven Segment Output e
  14. f - Seven Segment Output f
  15. g - Seven Segment Output g
  16. GND - Ground

Functional Features

  • Converts BCD input to a 7-segment display output
  • Latch enable input for storing the BCD data
  • Lamp test input for testing the display
  • Blanking input for turning off all segments
  • Compatible with both CMOS and TTL logic levels
  • High output current capability for driving common cathode displays

Advantages and Disadvantages

Advantages

  • Wide supply voltage range allows flexibility in different applications
  • Compatible with various logic families, making it versatile
  • High output current capability ensures reliable driving of display segments

Disadvantages

  • Limited to BCD input, not suitable for other types of data
  • Requires additional components for multiplexing multiple displays

Working Principles

The MC14549BCPG is a BCD-to-Seven Segment Latch/Decoder/Driver IC. It takes Binary-Coded Decimal (BCD) input and converts it into the appropriate signals to drive a 7-segment display. The BCD inputs (A, B, C, D) represent the decimal value to be displayed. The latch enable input (LE) allows the BCD data to be stored internally. The lamp test input (LT) activates all segments for testing purposes. The blanking input (BL) turns off all segments.

Detailed Application Field Plans

The MC14549BCPG is commonly used in applications that require the conversion of BCD data to a 7-segment display output. Some typical application fields include:

  1. Digital clocks and timers
  2. Counters and frequency meters
  3. Industrial control panels
  4. Instrumentation displays
  5. Automotive dashboards

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the MC14549BCPG are:

  1. CD4511BCN - BCD-to-Seven Segment Latch/Decoder/Driver IC
  2. SN74LS47N - BCD-to-Seven Segment Decoder/Driver IC
  3. HEF4543BP - BCD-to-Seven Segment Latch/Decoder/Driver IC

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

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät MC14549BCPG :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of MC14549BCPG in technical solutions:

  1. Q: What is MC14549BCPG? A: MC14549BCPG is a CMOS BCD-to-7-segment latch/decoder/driver IC, commonly used for driving 7-segment displays.

  2. Q: What is the operating voltage range of MC14549BCPG? A: The operating voltage range of MC14549BCPG is typically between 3V and 18V.

  3. Q: How many 7-segment displays can be driven using MC14549BCPG? A: MC14549BCPG can drive up to four individual 7-segment displays.

  4. Q: Can MC14549BCPG directly drive common cathode or common anode displays? A: Yes, MC14549BCPG can drive both common cathode and common anode displays by configuring the appropriate connections.

  5. Q: Does MC14549BCPG have built-in latches? A: Yes, MC14549BCPG has built-in latches that allow the data to be stored and displayed on the 7-segment display.

  6. Q: What is the maximum frequency at which MC14549BCPG can operate? A: MC14549BCPG can operate at frequencies up to 5 MHz.

  7. Q: Can MC14549BCPG be cascaded to drive more than four 7-segment displays? A: Yes, multiple MC14549BCPG ICs can be cascaded together to drive more than four 7-segment displays.

  8. Q: Is MC14549BCPG compatible with microcontrollers and other digital logic circuits? A: Yes, MC14549BCPG is compatible with microcontrollers and other digital logic circuits as it operates at standard logic levels.

  9. Q: Can MC14549BCPG be used for multiplexing displays? A: Yes, MC14549BCPG can be used for multiplexing displays by sequentially driving each 7-segment display.

  10. Q: Are there any specific precautions to consider when using MC14549BCPG? A: It is important to ensure that the power supply voltage does not exceed the specified maximum limit (typically 18V) to prevent damage to the IC. Additionally, proper decoupling capacitors should be used to minimize noise and ensure stable operation.

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