7447 IC – BCD to 7 Segment Decoder description:The 7447 accepts four lines of BCD (8421) input data, generates 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 withstand 15V in the OFF (HIGH) state with a maximum leakage current of 250 mA. Auxiliary inputs provided blanking, lamp test and cascadable zero-suppression functions.Single BCD to 7-Segment Decoder with Open Collector OutputOutputs Directly Interface to CMOS, NMOS and TTLLarge Operating Voltage RangeWide Operating ConditionsWhat does a 7447 IC do?IC number 7447 are circuits for BCD to seven segment converters and display from numbers 0 to 9. It decodes BCD in seven segmentations. Normally, IC7447 accepts input that is binary code values. The BCD is processed into seven segments shown as numbers 0 to 9 on a monitor.Is 7447 common anode or cathode?Common ANODE. 74LS47 is a BCD to 7-Segment (common Anode) Decoder/Driver with Open-Collector Outputs – In 16-DIP Package.7447 IC – BCD to 7 Segment Decoder: Recommended Operating ConditionsSymbolParameterMinTypMaxUnitsVccSupply Voltage4.7555.25VVihHIGH Level Input Voltage2VVilLOW Level Input Voltage0.8VIohHIGH Level Output Current-0.4mAIolLOW Level Output Current16mATaFree Air Operating Temperature070°C Electrical CharacteristicsSymbolParameterConditionsMinTypMaxUnitsViInput Clamp VoltageVcc=Min Ii=-12mA-1.5VVohHIGH Level Output VoltageVcc=Min Ioh=MAX Vil=MAX2.43.4VVolLOW Level Output VoltageVcc=Min Iol=MAX Vih=MAX0.20.4VIiInput Current@MAX Input VoltageVcc=Max Vi=5.5V1mAIihHIGH Level Input CurrentVcc=Max Vi=2.4V40µAIilLOW Level Input CurrentVcc=Max Vi=0.4V-1.6mAIosShort Circuit Output CurrentVcc=Max-18-55mAIcchSupply Current with Outputs HIGHVcc=Max48mAIcclSupply Current with Outputs LOWVcc=Max1222mASwitching Characteristics at Vcc=5V,Ta=25°CSymbolParameterConditionsMinTypMaxUnitstplhPropagation Delay Time LOW-to-HIGH Level OutputCl=15pF Rl=400R22nStphlPropagation Delay Time HIGH-to-LOW Level OutputCl=15pF Rl=400R15nS7447 IC – BCD to 7 Segment Decoder Pin DescriptionPin NumberDescription1BCD B Input2BCD C Input3Lamp Test4RB Output5RB Input6BCD D Input7BCD A Input8Ground97-Segment e Output107-Segment d Output117-Segment c Output127-Segment b Output137-Segment a Output147-Segment g Output157-Segment f Output16Vcc – Positive SupplyFor related video, click here Also do not forget to check out our other ICs in the IC section. Thank you.7447 IC (BCD to 7 Segment Decoder) – check out the best price in Bangladesh
