SN74LS47N Datasheet – BCD to 7 Segment – Encoder, Decoder

Part Number: SN74LS47N

Function: Encoders, Decoders, Multiplexers & Demultiplexers BCD to 7 Segment

Package: DIP 16 Pin

Manufacturer: Texas Instruments, Motorola ( Freescale )





TheSN54/74LS47 are Low Power Schottky BCD to 7-Segment Decoder /Driversconsisting of NAND gates, input buffers and seven AND-OR-INVERTgates. They offer active LOW, high sink current outputs for driving indicators directly. Seven NAND gates and one driver are connected in pairs tomake BCD data and its complement available to the seven decoding AND-OR-INVERT gates. The remaining NAND gate and three input buffers providelamp test, blanking input/ripple-blanking output and ripple-blanking input.

The SN74LS47N feature active-low outputs designed for driving common-anode LEDs or incandescent indicators directly.




1. Open-Collector Outputs Drive Indicators Directly
2. Lamp-Test Provision
3. Leading/Trailing Zero Suppression
4. Lamp Intensity Modulation Capability (BI/RBO)
5. Input Clamp Diodes Limit High-Speed Termination Effects

Connection Diagram

SN74LS47N datasheet

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Other data sheets are available within the file: 5447, 54LS47, 7447, 74LS47, SN54LS47

SN74LS47N Datasheet PDF Download

SN74LS47N pdf