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SN7447ANE4
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SN7447ANE4

Product Overview

Category

SN7447ANE4 belongs to the category of integrated circuits (ICs).

Use

It is primarily used for BCD-to-Seven-Segment Decoders/Drivers.

Characteristics

  • Converts binary-coded decimal (BCD) input into a 7-segment display output.
  • Designed to drive common-anode displays.
  • Low power consumption.
  • Wide supply voltage range.
  • High noise immunity.
  • Directly interfaces with TTL and CMOS logic levels.

Package

SN7447ANE4 comes in a 16-pin PDIP (Plastic Dual In-Line Package).

Essence

The essence of SN7447ANE4 lies in its ability to simplify the process of driving a 7-segment display by converting BCD inputs into the corresponding segment outputs.

Packaging/Quantity

SN7447ANE4 is typically packaged in tubes or reels, with quantities varying based on customer requirements.

Specifications

  • Supply Voltage: 4.75V to 5.25V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Power Dissipation: 500mW

Detailed Pin Configuration

  1. A
  2. B
  3. C
  4. D
  5. LT
  6. BI/RBO
  7. GND
  8. e
  9. f
  10. g
  11. RBO
  12. LT
  13. a
  14. b
  15. c
  16. VCC

Functional Features

  • Converts BCD input to 7-segment display output.
  • Provides active-low outputs for driving common-anode displays.
  • Includes a lamp test (LT) input for testing purposes.
  • Offers a blanking input (BI/RBO) for display blanking or ripple-blanking applications.

Advantages and Disadvantages

Advantages

  • Simplifies the process of driving a 7-segment display.
  • Low power consumption.
  • Wide supply voltage range allows for flexibility in various applications.
  • High noise immunity ensures reliable operation even in noisy environments.
  • Compatible with both TTL and CMOS logic levels.

Disadvantages

  • Limited to driving common-anode displays only.
  • Requires additional circuitry for driving common-cathode displays.

Working Principles

SN7447ANE4 works by accepting a BCD input and converting it into the corresponding segment outputs required to drive a 7-segment display. The inputs A, B, C, and D represent the BCD code, while the outputs a, b, c, d, e, f, and g correspond to the segments of the display. By providing the appropriate BCD input, the desired number or character can be displayed on the 7-segment display.

Detailed Application Field Plans

SN7447ANE4 finds application in various fields where BCD-to-7-segment decoding is required. Some of the common application areas include: - Digital clocks and timers - Counters and frequency meters - Industrial control systems - Instrumentation panels - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN7447ANE4 are: - CD4511BC: BCD-to-7-segment latch/decoder/driver - MM74C48: BCD-to-7-segment decoder/driver - HEF4543BP: BCD-to-7-segment latch/decoder/driver

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

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan SN7447ANE4 dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of SN7447ANE4 in technical solutions:

  1. Q: What is SN7447ANE4? A: SN7447ANE4 is a BCD to 7-segment decoder/driver IC, commonly used to convert binary-coded decimal (BCD) inputs into outputs that can drive a 7-segment display.

  2. Q: How does SN7447ANE4 work? A: SN7447ANE4 takes a 4-bit BCD input and decodes it to generate the appropriate signals to drive a 7-segment display. It has internal logic that maps each BCD input to the corresponding segment outputs.

  3. Q: What is the maximum frequency at which SN7447ANE4 can operate? A: The maximum operating frequency of SN7447ANE4 is typically around 30 MHz.

  4. Q: Can SN7447ANE4 directly drive a common cathode 7-segment display? A: No, SN7447ANE4 is designed to drive a common anode 7-segment display. If you have a common cathode display, you will need additional circuitry to invert the output signals.

  5. Q: How many 7-segment displays can be driven by a single SN7447ANE4? A: SN7447ANE4 can drive one 7-segment display. If you need to drive multiple displays, you will need multiple SN7447ANE4 ICs or use multiplexing techniques.

  6. Q: What is the maximum current that SN7447ANE4 can sink/source per segment? A: SN7447ANE4 can typically sink/source up to 24 mA per segment. However, it is recommended to check the datasheet for the exact specifications.

  7. Q: Can SN7447ANE4 handle both common anode and common cathode displays? A: No, SN7447ANE4 is specifically designed for common anode displays. For common cathode displays, you will need to use additional circuitry or a different decoder IC.

  8. Q: What is the power supply voltage range for SN7447ANE4? A: SN7447ANE4 operates with a power supply voltage (VCC) in the range of 4.75V to 5.25V.

  9. Q: Does SN7447ANE4 have built-in current limiting resistors for the segment outputs? A: No, SN7447ANE4 does not have built-in current limiting resistors. External resistors are required to limit the current flowing through the segments.

  10. Q: Can SN7447ANE4 be used in applications other than driving 7-segment displays? A: Yes, SN7447ANE4 can be used in various applications where BCD to 7-segment decoding is required, such as digital counters, calculators, and instrumentation displays.

Please note that these answers are general and may vary depending on the specific implementation and datasheet specifications of SN7447ANE4.