Question

Vcc 16 15 14 2 LT3 4 Bl 12 6 10 9 GND 8 Figure 1: Overall 7446 Decoder circuit VCC 5.0V A B CDEFG 74LS47 vec OA OB ос OD LE -RBI OG BI/RBO GND 470 Ohm 1 kOhm 1 kOhm 1 kOhm 1 kOhm Figure 2: Overall Schematic of the Decoder circuit for Procedure 4 VCC 5.0V 1 kohm kOhm 1 kohm 1 Kohm 74LS47 AB COEFG OD oc OD 0E OE OG LT I /RSO 470 Ohm Figure 3: Overall Schematic of the Decoder circuit for Procedure 5 Answer these Questions: Answer should be as detailed as possible covering the following aspects: 1. a.) Illustrate the operation of the circuit in Figure 1 b.) Describe significance and functionality of the 74LS47. c.) Explain how binary numbers are converted to become decimal numbers using the circuit above. d.) Explain the difference between the inputs in procedures 4 and 5. e.) Suggest typical applications where this circuit can be found.

Answer 1

doig Common amode-L PDs opple- bank in puut ouetput contus and a lamp test input dogic leve when output fundtions o thug hi gh logic level to opexate propety will be tumed oFf irespective of other inpues → The Islandeng, input (Ll ) must be held high → The (RC) npple-bla n king mput ma t be head at Vcc VCL -Segment Common anode 16 Lp 6 ate held high and a → when RBI and sement ovutpute wil be o

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ⓡ used in tTher8 OY Coun ters to cli pla the out C) Cy modifying it can be uted ada, ther Ciscwit- ciocats like digstel watche cailculaboys clocks etc