The SN74LS247D is an integrated circuit component commonly known as a BCD to 7-segment decoder/driver. It is manufactured by Texas Instruments and serves as a facilitator in converting binary codes to drive output displays. Here is an overview and key features of this IC component:
1. Functionality: The SN74LS247D takes Binary-Coded Decimal (BCD) inputs and converts them into the corresponding 7-segment display outputs. It can decode a 4-bit BCD input (0-9) into the signals required to drive a 7-segment display, making it ideal for display applications.
2. Input Pins: This IC has four input pins, labeled A, B, C, and D, which accept the 4-bit BCD input code. These inputs determine the specific number being displayed.
3. 7-Segment Output Pins: The SN74LS247D has seven output pins (a to g) that correspond to the segments of a typical 7-segment display. These output pins provide the necessary signals to light up the required segments to display the given number.
4. Active Low Output: The 7-segment output pins are wired with active low logic. It means that applying a logical "0" to any output pin enables the corresponding segment, while logical "1" turns it off
