NAND Latch Summary and Operations

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What happens to the output state in the normal resting state of a NAND latch?

It remains unchanged (correct)

It resets

It sets

It toggles

What is the result when SET is HIGH in a NAND latch?

The output goes to a state and remains even after SET returns HIGH (correct)

The output toggles

The output sets

The output resets

What occurs when RESET is HIGH in a NAND latch?

The output resets

The output sets

The output toggles

The output goes to a state and remains even after RESET returns HIGH (correct)

What happens if both SET and RESET are made HIGH simultaneously in a NAND latch?

The resulting state is unpredictable Signup and view all the answers

What is the function of clock input in clocked flip-flops?

It maintains synchronization and control over input changes Signup and view all the answers

What is the typical label for the clock input in clocked flip-flops?

CLK Signup and view all the answers

In clocked flip-flops, the CLK input is typically activated by:

A signal transition Signup and view all the answers

What does a small triangle on the CLK input of a flip-flop symbol indicate?

Activation only when a positive-going transition occurs Signup and view all the answers

The presence of a bubble and a triangle on the CLK input of a flip-flop symbol signifies:

Activation only when a negative-going transition occurs Signup and view all the answers

What type of signal triggers a clocked S-R flip-flop to change states?

A positive-going edge of the clock signal Signup and view all the answers

How does the clocked S-R flip-flop respond to the S and R inputs?

It responds after the occurrence of the PGT of the clock signal Signup and view all the answers

What does the up arrow symbol in the function table for a clocked S-R flip-flop indicate?

A positive-going transition requirement at CLK Signup and view all the answers

What is indicated by the label in the function table for a clocked S-R flip-flop?

The level at Q prior to the positive-going transition Signup and view all the answers

What is typically used by IC manufacturers in their IC data manuals to represent requirements for clocked S-R flip-flops?

An up arrow symbol Signup and view all the answers

What does a bubble on the flip-flop symbol's CLK input represent?

Activation only when a negative-going transition occurs Signup and view all the answers

In clocked FFs, what type of trigger is indicated by the presence of a small triangle on the CLK input?

Positive-going transition (PGT) trigger Signup and view all the answers

What does the presence of a small triangle on the CLK input of a clocked FF indicate?

It is activated only when a positive-going transition occurs Signup and view all the answers

What does a FF symbol with a bubble and a triangle on its CLK input signify?

The CLK input is activated only by a negative-going transition Signup and view all the answers

In clocked flip-flops, what type of transition activates the CLK input?

Positive-going transition Signup and view all the answers

What does the logic symbol for a clocked S-R flip-flop triggered by the positive-going edge of the clock signal signify?

It can change states only when a signal makes a transition from 0 to 1 Signup and view all the answers

What is required at the CLK input for the clocked S-R flip-flop to respond to the S and R inputs?

A positive-going transition Signup and view all the answers

What does the up arrow () indicate in the function table for the clocked S-R flip-flop?

A positive-going transition required at CLK Signup and view all the answers

What is indicated by the label '0' in the function table for the clocked S-R flip-flop?

'0' level at Q prior to the PGT Signup and view all the answers

What does the presence of a small triangle on the CLK input of most clocked FFs contrast with?

Level-triggered latches Signup and view all the answers