SN74LS47NE4

Overview

The SN74LS47NE4 is a BCD-to-seven-segment decoder and driver manufactured by Texas Instruments. It accepts four-bit binary-coded decimal inputs and provides active-low outputs to drive seven-segment displays. The device operates within a temperature range of -40°C to 85°C and utilizes a 16-pin DIP package.

Feature Summary

• Converts binary-coded decimal data into segment signals for display output
• Features active-low outputs compatible with common-anode displays
• Includes internal pull-up resistors for blanking and ripple blanking inputs

Applications

• Driving seven-segment LED displays in digital counters
• Display interfaces for microcontroller-based systems
• Numeric readouts in industrial control panels

Procurement Notes

Verify the specific suffix NE4 indicates lead-free composition and PDIP packaging. Confirm the manufacturer source is Texas Instruments or an authorized distributor. Ensure the component matches the 16-pin DIP form factor required for the target circuit board footprint.

Selection Notes

Select this part when designing circuits requiring direct BCD input to seven-segment conversion. It is suitable for applications needing active-low drive signals. Consider power supply voltage compatibility and thermal requirements for the operating environment.

Part Context

This component belongs to the SN74LS series, representing low-power Schottky TTL logic. It serves as a specialized interface between digital logic circuits and visual output devices, simplifying the design of numeric display systems.

Replacement Considerations

Compatible substitutes include SN74LS47DR and SN74LS47N. Verify pinout compatibility and electrical specifications before substitution.