The SN74LS47D is a BCD-to-Seven-Segment Decoder/Driver designed by Texas Instruments, tailored to interface between digital counting or computing equipment and display devices. This integrated circuit (IC) is specifically engineered to convert binary coded decimal (BCD) input data into signals that drive 7-segment displays.

Key Features

• Logic Family: LS - Low-power Schottky
• Operating Voltage: 4.75 V to 5.25 V
• Output Current: Capable of sourcing up to 40 mA
• Package: SOIC-16, providing a compact surface-mount solution
• Direct Drive: To common-cathode LED displays
• Lamp Test and Blanking: Inputs to test the display and blank the display without affecting the internal operation of the chip

Applications

The SN74LS47D is suitable for a wide range of applications in digital systems where numeric or alphanumeric display output is required. Common usage scenarios include:

• Electronic counters
• Digital clocks and timers
• Instrumentation displays
• Calculator displays

Performance and Quality

Texas Instruments ensures that the SN74LS47D meets rigorous standards for performance and reliability. The device operates efficiently within the industrial temperature range and is characterized for operation from 0°C to 70°C. With its low power consumption and high noise immunity, it is an excellent choice for portable and energy-sensitive applications.

Design and Integration

The SN74LS47D is designed for easy integration into your system with minimal external components required. Its pin configuration is standardized for the 7-segment display drivers, which simplifies the PCB design process. Additionally, the IC's compatibility with other TTL logic families allows for seamless integration into existing designs.

For detailed product specifications, application notes, and support resources, visit the Texas Instruments official website or consult the SN74LS47D datasheet.