BCD To 7-Segment Decoder/Driver With Open-Collector OutputsThe LS47 accepts four lines of BCD (8421) input data, gen-
erates their complements internally and decodes the data
with seven AND OR Gates having open-collector outputs to
drive indicator segments directly. Each segment output is
guaranteed to sink 24 mA in the ON (LOW) state and with-
stand 15V in the OFF (HIGH) state with a maximum leakage
current of 250 A. Auxiliary inputs provided blanking, lamp
test and cascadable zero-suppression functions. By Fairchild Semiconductor
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