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Product Detailed Parameters
- Description：SN74LS247 BCD-TO-SEVEN-SEGMENT D
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Display Type：-
- Configuration：-
- Interface：-
- Digits or Characters：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Current - Supply：-
- Grade：-
- Qualification：-
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Overview
The SN74LS247NE4 is a BCD-to-7-segment decoder and driver manufactured by Texas Instruments. It accepts Binary-Coded Decimal inputs and drives common-anode LED displays. The device operates within a supply voltage range of 4.75V to 5.25V and supports through-hole mounting in a 16-pin DIP package. It functions as a display driver with an operating temperature range of 0°C to 70°C.
Feature Summary
- Converts binary-coded decimal inputs into seven-segment outputs for direct LED display driving
- Designed specifically for common-anode light-emitting diode configurations
- Provides internal pull-up resistors on output lines to ensure defined logic states
Applications
- Digital clock display systems requiring decimal digit representation
- Numeric readouts for industrial measurement instruments
- Control panel interfaces displaying operational status codes
Procurement Notes
Verify the specific suffix 'E4' indicates lead-free composition and RoHS compliance during acquisition. Confirm the package type matches the required PCB footprint, typically a standard 16-pin dual in-line configuration. Ensure the target application utilizes common-anode LEDs compatible with the device's open-collector output structure.
Selection Notes
Select this component when a dedicated BCD-to-decimal conversion is required for visual feedback. It is suitable for low-frequency applications where propagation delay is not critical. Consider alternative families if higher speed or different input encoding formats are necessary for the system design.
Part Context
This part belongs to the Texas Instruments SN74LS series, representing Low-power Schottky TTL logic. The SN74LS247 variant specifically addresses the need for direct decoding without external logic gates. It serves as a foundational component in legacy digital systems utilizing discrete LED indicators for numerical data presentation.
Replacement Considerations
The SN74LS247N is the non-compliant equivalent. Cross-reference with other LS-series decoders only if pin compatibility and electrical characteristics match exactly.
