Q. Four MSI TTL 4-bit ripple counters are cascaded to form a 16-bit binary counter. Its propagation delay is about __________ nanoseconds.

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Q. The Boolean function A + BC is reduced form of

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Q. To convert JK flip flop to D flip flop

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Q. Read cycle is always followed by (during instructions execution)

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Q. Semiconductor ROM's are sometimes preferred to semiconductor RAM's because

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Q. RAMs can be built with bipolar or CMOS transistor RAMs that are not possible with bipolar transistors are

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Q. RS latch can be built with

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Q. In D-type FF, Preset (Pr) and clear (Clr) inputs are called

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Q. Which memory is available in all technologies?

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Q. 100101.1011₂ = __________ .

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Q. An XOR gate with 6 variables is as follows A ⊕ B ⊕ C ⊕ D ⊕ E ⊕ F. The number of minterms in the Boolean expression is

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Q. Periodic recharging of the memory cells at regular intervals of 3 to 8 millisecond is required in a

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Q. The frequency of the driving network connected between pins 1 and 2 of a 8085 chip must be

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Q. Assertion (A): Divide-64 counter is a Mod-64 counter and divides the input frequency by 64

Reason (R): A Mod 64 counter can be obtained by cascading Mod 16 and Mod 4 counters.

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Q. In 8085 microprocessor, in order to enable INTR interrupt, which of the following instruction are needed?

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Q. The output impedance of a logic pulser is

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Q. In a J-K flip flop the input J = K = 1 pulse is about

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Q. In a four variable Karnaugh map, eight adjacent cells give a

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Q. Binary 1000 multiplied by binary 1000 gives

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Q. 11101₂ x 10001₂ =

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