57751. A twisted ring counter consisting of 4 FF will have
57752. Assertion (A): In a serial in-serial out shift register, access is available only to the left most or right most flip flops Reason (R): If the output of a shift register is feedback to serial input it can be used as a ring counter.
57753. IC counters are
57754. 2's complement representation of a 16 bit number (one sign bit and 15 magnitude bits) is FFFF. Its magnitude in decimal representation is
57755. The method used to transfer data from I/O units to memory by suspending the memory-CPU data transfer for one memory cycle is called
57756. Out of SAM and RAM
57757. Which of the following will produce a value of 22 if x=9?
57758. For K map of the given figure the simplified Boolean expression is
57759. Choose the appropriate turn on and turn off time of a FET
57760. Consider the following statements ECL has least propagation delayTTL has largest fan outCMOS has highest noise marginTTL has lowest power dissipation Which of these are correct?
57761. In Schottky TTL, a Schottky diode is used for
57762. The circuit of the given figure is
57763. Which of the following ICs has only one NAND gate?
57764. A mod-10 counter can divide the clock frequency by a factor of
57765. In a digital circuit, a clock is a
57766. In a RS flip-flop no change occurs during
57767. Out of multiplexer and demultiplexer, which can be used as a logic function generator?
57768. Binary 1000 will be the result of which of the following?
57769. In a programmable counter
57770. NAND gates can be used to produce edge triggering.
57771. The number of comparator circuits required to build a three-bit simultaneous A/D converter is
57772. -8 is equal to signed binary number
57773. Assume that only x and y logic inputs are available. What is the minimum number of 2-input NAND gates required to implement x ⊕ y?
57774. The decimal equivalent of the hexadecimal number E 5 is
57775. The parity bit is
57776. In 2's complement representation, a certain negative number - N is 1011. The representation for + N is
57777. In 8355, the ROM is organized as __________ words of 8 bits each.
57778. What binary number does second row represent?
57779. In C-language f- = 9 is equivalent to
57780. Effective address is calculated by adding or subtracting displacement value to
57781. Typical switching time for ECL is
57782. Which is the legal ways to access a class data member using the pointer?
57783. For a logic family
VOH is the minimum output high level voltage VOL is the maximum output low level voltageVIH is the minimum acceptable input high level voltageVIL is the maximum acceptable input low level voltage The correct relationship is
57784. In which function is each term known as minterm?
57785. How many and what are the machine cycles needed for execution of MOV D, C?
57786. The output data lines of microprocessor and memories are usually tristated because
57787. In the NMOS inverter
57788. A counter displays a sequence of numbers. If a reading corresponds to the hexadecimal number F52E, the next two readings are respectively
57789. Monostable multivibrator is called one-shot or single-shot circuit because it
57790. 10's complement of 1610 is
57791. The hexadecimal number 64 AC is equivalent to decimal number
57792. A binary with a digits, all of which are unity has the value
57793. In a NAND SR latch S = R = 1. Then
57794. 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
57795. The logic represented by the abbreviation ECL is
57796. A (A + B) =
57797. 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
57798. One of the function of the Sio2 layer in an IC is to
57799. In a shift register the data is loaded in one operation but shifted out one bit at a time, The shift register is