SN74LS247D

Overview

The SN74LS247D is a BCD-to-7-segment decoder and driver manufactured by Texas Instruments. It belongs to the LS logic family and operates within a supply voltage range of 4.75V to 5.25V. The device features active-low outputs designed for direct LED driving, providing sufficient current capability. It utilizes a 16-pin SOIC surface-mount package with dimensions of 0.154 inches (3.90mm) width. The component supports an operating temperature range from 0°C to 70°C.

Feature Summary

• Converts binary-coded decimal inputs into seven-segment display signals
• Provides active-low outputs suitable for common-anode LED displays
• Includes ripple blanking functionality for leading zero suppression

Applications

• Seven-segment LED display systems
• Digital readout panels
• Numeric indicator circuits

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and pin configuration. Confirm that the active-low output polarity matches the target display hardware requirements. Ensure the supply voltage remains strictly within the specified 4.75V to 5.25V limits during operation.

Selection Notes

Select this component when a dedicated BCD-to-7-segment interface is required for numeric data visualization. Consider the LS logic family characteristics regarding speed and power consumption relative to system needs. Verify compatibility with the intended display type before integration.

Part Context

This part is part of the SN54/74246/47 series, which includes decoders and drivers for various display configurations. The SN74LS247D specifically addresses applications requiring direct interfacing between digital logic and visual indicators without additional buffering components.

Replacement Considerations

SN74LS247DR is listed as a direct substitute.