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© Bob York Gates +5 V 1 kΩ Out +5 V A B Out 14 6 13 12 7 9 1011 8 In 1 kΩ +5 V A B Out 11 6 10 12 8 7 14 9 13.

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Presentation on theme: "© Bob York Gates +5 V 1 kΩ Out +5 V A B Out 14 6 13 12 7 9 1011 8 In 1 kΩ +5 V A B Out 11 6 10 12 8 7 14 9 13."— Presentation transcript:

1 © Bob York Gates +5 V 1 kΩ Out +5 V A B Out 14 6 13 12 7 9 1011 8 In 1 kΩ +5 V A B Out 11 6 10 12 8 7 14 9 13

2 © Bob York Logic Gates

3 © Bob York SR Latches S R Q Q S R Q Q C S R Q Q S R Q Q

4 © Bob York D-latch D Q Q C DQ Q D C Q Q C “Master”“Slave”

5 © Bob York Switch Debouncing Out ¼ 4093 0.1 μF +5 V 1 kΩ +5 V 1 kΩ Button pressed Contact Bounce

6 © Bob York Shift Register DQ Q C Data Switch To logic indicators Clock Switch DQ Q C Data Switch DQ Q C DQ Q C DQ Q C Clock Switch To logic indicators

7 © Bob York Ring Counter DQ Q C DQ Q C DQ Q C DQ Q C Clock Switch To logic indicators Preset Switch To Set or Reset pins

8 © Bob York Ripple Counter DQ Q C Clock Switch To logic indicators or DAC DQ Q C Clock DQ Q C DQ Q C DQ Q C LSBMSB

9 © Bob York 4-Bit R-2R DAC 20kΩ 10kΩ 20kΩ Out b0b1b2b3 LSB MSB

10 © Bob York Tracking ADC ¼ 4011 +5 V 1 kΩ + - 74191 Load QAQA Clk QBQB QCQC QDQD Enable U/D V CC Gnd 14 11 16 8 5 4 3 2 6 7 +5 V Clock 20k 10k 20k Analog Input + - ADC (Digital) Output DAC output Unity-gain Buffer Hysteretic Comparator ½ LM392 +5 V 1 k 100k 1k +9V 5 6 7 4 8 3 2 1 RaRa RbRb +5 V To analog input 10kΩ trimpot


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