The SN74LS47DG4 is a BCD-to-Seven Segment Decoder/Driver IC component. It is widely used in digital display applications to convert binary-coded decimal (BCD) input into the corresponding output to drive seven-segment displays. Below is an overview and key features of the SN74LS47DG4:
1. Overview:
- The SN74LS47DG4 is a part of the SN74LS family, which is a series of integrated circuits developed by Texas Instruments.
- It is designed specifically for driving common-anode seven-segment displays.
2. Key Features:
- BCD-to-seven segment conversion: The IC takes a BCD input (four bits) and converts it into the appropriate output to drive a seven-segment display.
- Open-collector outputs: It provides open-collector outputs, allowing easy interfacing with external displays or other circuitry.
- Binary/Decimal mode: The IC can operate in either binary coded decimal (BCD) or natural binary mode, selectable through an input pin.
- Cascadable: Multiple SN74LS47DG4 ICs can be cascaded together to drive multiple seven-segment displays using a single BCD input.
- Internal pull-ups: The IC has built-in pull-up resistors on the BCD input pins, simplifying input connection
