51. The number of unused states in a 4 bit Johnson counter is
52. It is desired to display the digit 7 using a seven segment display. The LEDs to be turned on are
53. For a MOD-12 counter, the FF has a tpd = 60 ns The NAND gate has a tpd of 25 n sec. The clock frequency is
54. 1001012 is equal to decimal number
55. A Karnaugh map with 4 variables has
56. An 8 bit data is to be entered into a parallel in register. The number of clock pulses required is
57. Which of the following is error correcting code?
58. A universal shift register can shift
59. Available multiplexer IC package can have a maximum of 8 inputs.
60. A16 X 216 __________ .
61. For the binary number 11101000, the equivalent hexadecimal number is
62. AECF116 + 15ACD16 = __________ .
63. A XOR gate has inputs A and B and output Y. Then the output equation is
64. Wired AND connection can be used in TTL with totem pole output.
65. The Boolean expression for the circuit of the given figure
66. What will be BCD number when the output is 0.37 V?
67. The first machine cycle of an instruction is always
68. A counter has N flip flops. The total number of states are
69. Out of S, R, J, K, Preset, Clear inputs to flip flops, the synchronous inputs are
70. The Boolean expression A ⊕ B is equivalent to
71. Which of these are two state devices?
72. What will be minimum conversion rate in 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).
73. The minimum number of NAND gates required to implement the Boolean function A +AB + AB C is equal to
74. For the K map of the given figure, the simplified Boolean expression is