Q. Assertion (A): TTL uses multiple emitter transistor.

Reason (R): Multiple emitter transistors with about 60 emitters have been developed.

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Q. Which of the following binary product is incorrect?

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Q. Assertion (A): The advantages of totem pole output are fast switching and low power consumption.

Reason (R): IC packages available are DIP, surface mount and J lead surface mount.

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Q. In DTL the junction transistor serves as

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Q. A 16 x 8 ROM stores these words in its first four locations, as given below. Which of this represents 3 CH in hexadecimal?

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Q. Decade counter has 4 flip flops and skips states 10 to 15.

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Q. If we need a low noise device, we should use

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Q. The principal of locality of reference justifies the use of

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Q. The contents of the commands register are 23 H. Then port C

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Q. Which of the following bus is used to transfer data from main memory to peripheral device?

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Q. Assertion (A): The output of an 8 bit ADC is 80 H if input is 2.5 V

Reason (R): ADC has an output range of 00 to FF H if input range is - 5 to + 5 V

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Q. A parity detector can detect

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Q. Which of the- following display consumes least amount of power?

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Q. The converter whose conversion time is independent of number of bits is

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Q. Serial input data of 8085 can be loaded into bit-7 of the accumulator by

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Q. A crystal is frequently used in digital circuits for timing purpose because of its

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Q. The value of program counter of 6800 at power on are after reset is

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Q. The Boolean expression for the sub-class (Q) of all electronic instruments which are measuring instruments or are non-digital instruments with battery supply is

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Q. Serial in-serial out shift register can be built using D flip flops.

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Q. A binary ladder network D/A converter requires

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