The SN74LS247N is an integrated circuit (IC) component commonly used in digital display applications. It is a BCD (Binary Coded Decimal) to Seven-Segment Decoder/Driver, designed to convert binary inputs into the corresponding numeric display on a seven-segment LED (Light Emitting Diode) display.
Here are some key features of the SN74LS247N:
1. BCD to Seven-Segment Conversion: The IC takes a four-bit BCD input (0-9) and generates the necessary output signals to display the corresponding digit on a seven-segment display. Each digit on the display is composed of seven segments that can be independently turned on or off.
2. Decoder/Driver Functionality: The IC not only decodes the binary input but also drives the appropriate current through the segments of the connected seven-segment LED display. It handles the complex task of converting the binary input to the correct arrangement of segments without requiring any additional circuitry.
3. Open-Collector Outputs: The outputs of the SN74LS247N are open-collector outputs. This means that they can only sink current (pull output voltage low) and cannot source current (drive output voltage high). It allows for easy interfacing with different types of displays, as it requires an external pull-up resistor to provide the necessary current for illuminating the segments
