Which of these sets of logic gates are designated as universal gates?
Using any one of these 2 gates - NAND, NOR we can design all logic gates.
Which one of the following is not a vectored interrupt?
Here TRAP, INTR, RST 7.5 are vectored interrupt. But RST 3 is not a non vectored interrupt.
The 2’s complement of the number of 1010101
The binary number is 1010101. We know that 2’s complement = 1’s complement + 1. So 1’s complement of 1010101 is 0101011. Then add with 1 , we get 2’s complement 101011 + 1 = 0101011.
In the toggle mode a JK flip-flop has
J = 0, K = 0 - no change condition between pre-state and next state, J = 0, K = 1 - it is always reset condition means next state is always 0, J = 1, K = 0 - it is always set condition means next state is always 1, J = 1, K = 1 - it is toggle condition means when pre-state is 1 then next state is 0 or when pre-state is 0 then next state is 1.
The resolution of a 12 bit analog to digital converter in percent in
What will be Excess - 3 code for decimal ( 584 )?
5 8 4 + 3 3 3 = 8 11 7. Then 8 is a decimal no. So it is converted to binary when result is 1000, 11 convert to binary 1011, 7 convert to binary-0111. So result is (1000 1011 0111).
The number of comparators in a parallel conversion type 8-bit analog to digital converter is
Number of comparators = ( 2N - 1 ) = ( 212 - 1 ) = 255 ( N = no. of bits ).
Excess 3 code is known as
Complement of Excess 3 code is 9's complement of that digit in excess 3. So excess 3 code is also called self complementing code.
8085 microprocessor has how many pins
Intel 8085 NMOS microprocessor is a 8 bit, 40 pins IC. It is a 40 pin I.C. package fabricated on a single LSI chip. The Intel 8085 uses a single + 5 V DC supply for its operation.Its clock speed is about 3 MHz.The clock cycle is 320 ns. It has 80 basic instructions and 246 opcodes.
How many flip flops are required to build a binary counter circuit to count from 0 to 1023?
Total count = 1024, 2N = 1024 or, 2N = 210 or, N = 10 (no. of flip flops).
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location
6 × 8 = ( 48 )10 = 0030H.
HLT opcode means
HLT opcode in 8085 microprocessor means end of program.
In flip flop clock is present but in latch clock is
Synchronous circuits change their states only when clock pulses are present.The latch with additional control input ( clock, enable input) is called flip flop.
Counter is a
A counter is a sequential circuit that keeps a record of the clock pulses sent through it. Like a register, a counter also consists of a group of flip-flops. However, a counter has a characteristics internal sequence of states through which it passes when a series of clock pulses are fed to it. Counters are divided into categories : ripple ( or asynchronous ) counters and synchronous counters.