74ls47 (BCD to 7-Segment Decoder) Datasheet

The DM74LS47 accepts four lines of BCD (8421) inputdata, generates their complements internally and decodesthe data with seven AND/OR gates having open-collectoroutputs to drive indicator segments directly. Each segmentoutput is guaranteed to sink 24 mA in the ON (LOW) stateand withstand 15V in the OFF (HIGH) state with a maxi-mum leakage current of 250µA. Auxiliary inputs providedblanking, lamp test and cascadable zero-suppression func-tions

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