Test: Digital Electronics - 7 - Electronics and Communication Engineering (ECE) MCQ

A binary with a digits, all of which are unity has the value

In a NAND SR latch S = R = 1. Then

A microprocessor with a 16-bit address bus is used in a linear memory selection configuration (i.e., Address bus lines are directly used as chip selects of memory chips) with 4 memory chips. The maximum addressable memory space is

A (A + B) =

The logic represented by the abbreviation ECL is

Unlimited number of ICs 7490, 78492 and 7493 are available. Which of these could be used to build the dividse-by-60 circuit of figure

One of the function of the Sio₂ layer in an IC is to

In a shift register the data is loaded in one operation but shifted out one bit at a time, The shift register is

In CCD

The contents of the program counter after the call operation point to the first instruction on the

Dual slope ADC uses an op amp comparator.

The output of the 74 series of TTL gates is taken from a BST in

Assertion (A): Demorgan's first theorem replaces a NOR gate by bubbled AND gate.

Reason (R): Double complement of a variable equals the variable.

A flip-flop circuit is

Assertion (A): The use of 2's complement has simplified the computer hardware for arithmetic operations

Reason (R): 2's complement is obtained by adding 1 to 1's complement.

How many lines are there in address bus of 8085 μp?

Consider the following statements Timer 555 can be used as

1. monostable multivibrator
2. bistable multivibrator
3. astable multivibrator

A 4 bit binary adder has 4 full adders.

How many AND gates are required to realize Y = CD + EF + G?

In floating point representation, the accuracy is

The PC contains 0450 H and SP contains 08D 6 H. What will be content of P and SP following a CALL to subroutine at location 02 AFH?

An n bit ADC using V_r as reference has a resolution (in volts) of