What is SN74LS47N Chip?

 The SN74LS47N is a BCD to 7-segment latch/decoder/driver integrated circuit, primarily used in digital display applications. This device converts binary-coded decimal (BCD) inputs into signals that can drive a 7-segment display, allowing for easy representation of decimal numbers. 

Key Features: 

  1. BCD Input: The SN74LS47N accepts BCD input (0 to 9), making it suitable for applications that require decimal digit representation.

  2. 7-Segment Output: It drives common cathode 7-segment displays, generating the appropriate output signals to illuminate the correct segments for decimal digits.

  3. Active-Low Outputs: The outputs are active-low, meaning that a logic low on the output pin turns on the corresponding segment of the display, which is standard for many display applications.

  4. Latching Capability: The device includes a latch that holds the output when the inputs change, allowing for stable display conditions and preventing flickering.

  5. Built-in Blanking and Ripple Blanking: The SN74LS47N features inputs for blanking the display and controlling the ripple blanking feature, providing additional flexibility in managing display outputs.

Applications:

  • Digital Displays: Commonly used in electronic devices with numeric displays, such as digital clocks, counters, and scoreboards.
  • Measurement Instruments: Utilized in measurement and instrumentation systems that require numerical output.
  • Consumer Electronics: Found in a variety of consumer electronics for displaying numerical information.

Technical Specifications:

  • Input Voltage Levels: Compatible with standard TTL logic levels.
  • Output Drive Capability: Capable of driving multiple segments with sufficient current, typically around 30 mA per segment.
  • Package Type: Available in a 16-pin DIP package, facilitating easy integration into circuits.

The SN74LS47N is a reliable and efficient solution for driving 7-segment displays in various digital applications. Its ability to convert BCD inputs to segment outputs simplifies design efforts in display systems, making it a popular choice among engineers and designers.   

Search List Page： SN74LS47N Parts Search Page | Datasheet PDF | Price | Quantity-MobikeChip 

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Reprinted from: https://www.mobikechip.com/static-product-faq-detail/125.html 

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