The SN74LS247NS is an IC (integrated circuit) component manufactured by Texas Instruments. It is a BCD (Binary-Coded Decimal) to 7-Segment Decoder/Driver with Open-Collector Outputs. This IC is designed to convert a 4-bit BCD input into the corresponding outputs for driving a 7-segment display.
Key features of the SN74LS247NS include:
1. BCD to 7-Segment Conversion: The IC is specifically designed for converting BCD input signals (4 bits) into the 7-segment display output. It can decode all possible 16 BCD input patterns (0000 to 1111) and convert them into the required segment outputs to display decimal digits 0 to 9.
2. Open-Collector Outputs: The IC features open-collector outputs, which allows for easy interface and connection with external circuitry. Open-collector outputs are useful when multiple devices need to share a common bus or require different voltage levels.
3. Cascadable Design: Multiple SN74LS247NS ICs can be cascaded together to drive multiple 7-segment displays using the same BCD input. This provides an efficient solution for applications that require the display of multiple digits.
4. TTL (Transistor-Transistor Logic) Compatibility: The IC is designed to be compatible with conventional TTL logic levels, making it suitable to be used in TTL-based systems
