In the keyboard encoder, how many times per second does the ring counter scan the key board?

• A) 650 scans/second
• B) 625 scans/second
• C) 600 scans/second
• D) 700 scans/second

The PLA can be programmed to give an output of constant ___ or ______.

• A) 0,1
• B) 0,0
• C) 2,3
• D) 1,2

If a circuit suffers “Clock Skew “ problem, the output of circuit can’t be guarantied.

• A) False
• B) True
• C)
• D)

____________uses E2CMOS technology which is Electrically Erasable CMOS instead of Bipolar technology and fusible links.

• A) PROM
• B) PAL
• C) PLA
• D) GAL

The tri-state buffer connecting the output of the OLMC circuit to the output pin is controlled through ___________ different sources.

• A) five
• B) three
• C) two
• D) four

When the both inputs of edge-triggered J-K flop-flop are set to logic zero _________

• A) Q=1 and Q’=0
• B) Q=0 and Q’=1
• C) The flop-flop is triggered
• D) The output of flip-flop remains unchanged

A 4-bit binary up/down counter is in the binary state of zero. The next state in the UP mode is

• A) 1000
• B) 1110
• C) 1111
• D) 0001

__________occurs when the same clock signal arrives at different times at different clock inputs due to propagation delay.

• A) Clock Skew
• B) None of given options
• C) Race condition
• D) Ripple Effect

The GAL16V8 has_______.

• A) 8 special function pins
• B) All of the given options
• C) 8 pins that are used as inputs or outputs
• D) 16 dedicated inputs

In sequential circuits memory elements are connected with_______.

• A) Logic circuit
• B) Clock
• C) External Event
• D) Feedback path

A counter is implemented using three (3) flip-flops, possibly it will have ________ maximum output status.

• A) 3
• B) 7
• C) 15
• D) 8

The GAL22V10 is a popular GAL device having _____________ inputs and ten inputs/outputs.

• A) 10
• B) 22
• C) 12
• D) 20

Bi-stable devices remain in either of their _________ states unless the inputs force the device to switch its state

• A) Eight
• B) Three
• C) Two
• D) Ten

The 74HC163 is a 4-bit Synchronous Counter.it has..............parallel data inputs pins

• A) 6
• B) 4
• C) 8
• D) 2

For a down counter that counts from (111 to 000), if current state is "101" the next state will be _________

• A) 010
• B) none of given options
• C) 111
• D) 110

The ABEL Input file can use a_______ instead of the equation to specify the Boolean expressions.

• A) Karnaugh Map
• B) State Diagram
• C) Truth Table
• D) Logic Circuit

A flip-flop is connected to +5 volts and it draws 5 mA of current during its operation, the power dissipation of the flip-flop is

• A) 1024 mW
• B) 25 mW
• C) 10 mW
• D) 64 mW

A decade counter is __________

• A) Mod-3 counter
• B) Mod-10 counter
• C) Mod-5 counter
• D) Mod-8 counter

________________ is used when the output is connected back to the input of the PAL or if the output pin is used as an input only.

• A) Programmable polarity
• B) Combinational Output
• C) Combinational Input/Output
• D) Combinational Input

The OLMC can be configured to provide a feedback input signal to the AND gate array input. There are ___________ possibilities.

• A) three
• B) two
• C) four
• D) five