Locate The Data Sheet For The 74ls247 And Record The Pin Numbers On The Diagram Shown On The Right Using The Data Sheet 1 (65.06 KiB) Viewed 74 times
Locate the data sheet for the 74LS247 and record the pinnumbers on the diagram shown on the right. Using the data sheet for your 7-segment display, add thepin numbers to the diagram on the right.Connect the 74LS247 BCD – 7 Segment decoder, 7-segment display and resistors as shown in the diagram. Use thisexact layout to ensure that the resistors do not touch one another to avoid shorts.
Connect switches SW3-0 (A, B, C, D) using a quad-to-fourconnector. Notice that the input D is the most significantbit. To test the circuit’s operation, set various binarycounts on the switches and make sure their decimalequivalent shows on the 7-segment display. Cycle through the binary pattern for the switches andcomplete the truth table in the report, recording allpatterns. Describe what changing the input does.
S8 S7 S6 S5 000 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 S8 S7 S6 S5 1 0 0 0 10 0 1 0 1 0 10 1 1 11 0 0 11 0 1 11 1 0 11 1 14-bit BCD Input SW5 SW6 SW7 SW8 B D RBO RBI LT 74LS47 BCD to 7-sement Decoder 330-1kohm R www www www www www www www www b с d e f 8 dp a b Common Anode Display
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