Question: Problem 5 ( 6 points) Answer the following questions from the different TTL Families shown in table below. 74 745 74LS 74AS 74ALS 74F 4
Problem 5 ( 6 points) Answer the following questions from the different TTL Families shown in table below. 74 745 74LS 74AS 74ALS 74F 4 9 10 35 3 20 125 20 9.5 2 45 3 6 1.7 8 200 40 1.2 100 70 20 10 20 33 Performance ratings Propagation delay (ns) Power dissipation (mW) Max. clock rate (MHz) Fan-out (same series) Voltage parameters Vor(min) (V) Vol(max) (V) MH(min) (6) ML (max) (V) 2.4 2.5 0.4 0.5 2.7 0.5 2.0 0.8 2.7 0.5 2.0 0.8 2.5 0.5 2.0 0.8 2.5 0.5 2.0 0.8 2.0 0.8 2.0 0.8 a) Which TTL family has the maximum fan-out?. b) Which TTL family has the maximum power dissipation?.. c) Which TTL family has minimum power dissipation?.. d) Which family is the fastest? the slowest?.... e) Find the Noise Margin High(NM) and Noise Margin Low(NM.) for the three families 74AS, 74ALS,and 74F. What did you notice? Problem 5 ( 6 points) Answer the following questions from the different TTL Families shown in table below. 74 745 74LS 74AS 74ALS 74F 4 9 10 35 3 20 125 20 9.5 2 45 3 6 1.7 8 200 40 1.2 100 70 20 10 20 33 Performance ratings Propagation delay (ns) Power dissipation (mW) Max. clock rate (MHz) Fan-out (same series) Voltage parameters Vor(min) (V) Vol(max) (V) MH(min) (6) ML (max) (V) 2.4 2.5 0.4 0.5 2.7 0.5 2.0 0.8 2.7 0.5 2.0 0.8 2.5 0.5 2.0 0.8 2.5 0.5 2.0 0.8 2.0 0.8 2.0 0.8 a) Which TTL family has the maximum fan-out?. b) Which TTL family has the maximum power dissipation?.. c) Which TTL family has minimum power dissipation?.. d) Which family is the fastest? the slowest?.... e) Find the Noise Margin High(NM) and Noise Margin Low(NM.) for the three families 74AS, 74ALS,and 74F. What did you notice
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