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Subelement E
Digital Logic
Section 36
Flip-Flops
A flip-flop circuit is a binary logic element with how many stable states?
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A flip-flop circuit is a binary logic element with how many stable states?

2

See Wikipedia's article Flip-flop (electronics)

Also, see the Geeks for Geeks site for the article Flip-flop types, their Conversion and Applications

And, see the Electronics Tutorials site for the article Sequential Logic Circuits

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What is a flip-flop circuit? A binary sequential logic element with ___stable states.
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What is a flip-flop circuit? A binary sequential logic element with ___stable states.

2

See Wikipedia's article Flip-flop (electronics)

Also, see the Geeks for Geeks site for the article Flip-flop types, their Conversion and Applications

And, see the Electronics Tutorials site for the article Sequential Logic Circuits

Last edited by markadlerdallas. Register to edit

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How many flip-flops are required to divide a signal frequency by 4?
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How many flip-flops are required to divide a signal frequency by 4?

2

From katzelover:

A Flip-flop takes in a signal. The signal is output as either Q or Not Q. By feeding the Not Q back in, the flip-flop divides the frequency by 2. To divide the frequency by 4 you need 2 flip-flops.

Another way to think of this is that you need to be able to count four numbers in binary to divide by 4:

• 0 = b00
• 1 = b01
• 2 = b10
• 3 = b11

Each flip-flop stores one bit, and you needed two digits (bits) to do that thus you need two flip-flops.

Hint: You have 2 flip-flops.

See Wikipedia's article Flip-flop (electronics)

Also, see the Geeks for Geeks site for the article Flip-flop types, their Conversion and Applications

And, see the Electronics Tutorials site for the article Sequential Logic Circuits

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How many bits of information can be stored in a single flip-flop circuit?
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How many bits of information can be stored in a single flip-flop circuit?

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From kj6prf:

A flip-flop can store a zero or a one, so we can store one bit of information there.

See Wikipedia's article Flip-flop (electronics)

Also, see the Geeks for Geeks site for the article Flip-flop types, their Conversion and Applications

And, see the Electronics Tutorials site for the article Sequential Logic Circuits

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How many R-S flip-flops would be required to construct an 8 bit storage register?
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How many R-S flip-flops would be required to construct an 8 bit storage register?

8

From wp2ahg:

One flip-flop equates to one storage bit.
Eight flip-flops are required for an 8-bit register.

The SR stands for Set/Reset. A set/reset flip-flop whose output is low when R is high and S is low, high when S is high and R is low, and unchanged when both inputs are low

See Wikipedia's article Flip-flop (electronics)

Also, see the Geeks for Geeks site for the article Flip-flop types, their Conversion and Applications

And, see the Electronics Tutorials site for the article Sequential Logic Circuits

Last edited by markadlerdallas. Register to edit

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An R-S flip-flop is capable of doing all of the following except:
• Accept data input into R-S inputs with CLK initiated.
• Accept data input into PRE and CLR inputs without CLK being initiated.
• Refuse to accept synchronous data if asynchronous data is being input at same time.
Operate in toggle mode with R-S inputs held constant and CLK initiated.

An R-S flip-flop is capable of doing all of the following except:

Operate in toggle mode with R-S inputs held constant and CLK initiated.

The SR stands for Set/Reset. A set/reset flip-flop whose output is low when R is high and S is low, high when S is high and R is low, and unchanged when both inputs are low.

Initiating CLK (clock pin) means that a new clock pulse is generated, causing the flop to check the input pin D, and then remember the signal's value.

See the Electronics Tutorial site for the article The Toggle Flip-flop

And, see the ECStudio site for the article D Flip-Flop

Please see the Circuit Globe site for the article on RS Flip Flop

See Wikipedia's article Flip-flop (electronics)