236. ECL circuits have higher fan out because of their—

1. 1. high input impedance

   
   
   

   2. low output impedance

   
   
   

   3. high input and low output impedance

   
   
   

   4. complementary outputs
      

   
   
   

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   NA

   Correct Option: C

   NA

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237. The logic swing of a gate is about 0.8 V, this belongs to the logic family—

1. 1. TTL

   
   
   

   2. NMOS

   
   
   

   3. CMOS

   
   
   

   4. ECL

   
   
   

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   NA

   Correct Option: D

   NA

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238. Schottky TTL is a—

1. 1. non-saturated bipolar logic

   
   
   

   2. saturated bipolar logic

   
   
   

   3. high threshold logic

   
   
   

   4. None of these

   
   
   

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   NA

   Correct Option: A

   NA

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239. Which of the following is slowest and the oldest type?

1. 1. PMOS

   
   
   

   2. NMOS

   
   
   

   3. CMOS

   
   
   

   4. None

   
   
   

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   As compared to the NMOS, PMOS is slow because the mobility of holes is approximately 3 times slower than that of NMOS.

   Correct Option: A

   As compared to the NMOS, PMOS is slow because the mobility of holes is approximately 3 times slower than that of NMOS.

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240. Resistor free logic gate family—
     

1. 1. CMOS
      

   
   
   

   2. TTL
      

   
   
   

   3. ECL
      

   
   
   

   4. HTL

   
   
   

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   NA

   Correct Option: A

   NA

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