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Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat
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Carry-Ripple adder critical path delay Solution

STEP 0: Pre-Calculation Summary
Formula Used
ripple_time = propagation delay+(Gates On Critical Path-1)*Delay of the AND-OR gate+xor delay
Tripple = τ+(N-1)*tAO+Txor
This formula uses 4 Variables
Variables Used
propagation delay- propagation delay is the amount of time it takes for the head of the signal to travel from the sender to the receiver.
Gates On Critical Path- Gates On Critical Path total logic gate present
Delay of the AND-OR gate - Delay of the AND-OR gate in the gray cell (Measured in Second)
xor delay - xor delay is delay of the final sum XOR (Measured in Second)
STEP 1: Convert Input(s) to Base Unit
propagation delay: 20 --> No Conversion Required
Gates On Critical Path: 5 --> No Conversion Required
Delay of the AND-OR gate: 5 Second --> 5 Second No Conversion Required
xor delay: 8 Second --> 8 Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Tripple = τ+(N-1)*tAO+Txor --> 20+(5-1)*5+8
Evaluating ... ...
Tripple = 48
STEP 3: Convert Result to Output's Unit
48 Second --> No Conversion Required
FINAL ANSWER
48 Second <-- Ripple Time
(Calculation completed in 00.009 seconds)

10+ CMOS-VLSI Design Calculators

Drain Voltage
drain_voltage = sqrt(dynamic power/frequency*Capacitance) Go
Gate to Channel Voltage
gate_to_channel_voltage = (Channel Charge/Gate Capacitance)+Threshold voltage Go
Threshold Voltage
threshold_voltage = Gate to Channel Voltage-(Channel Charge/Gate Capacitance) Go
Gate Capacitance
channel_charge = Gate Capacitance*(Gate to Channel Voltage-Threshold voltage) Go
Channel Charge
channel_charge = Gate Capacitance*(Gate to Channel Voltage-Threshold voltage) Go
Capacitor dynamic power
dynamic_power = Drain Voltage^2*frequency*Capacitance Go
Potential gate to Collector
potential_gate_to_collector = (Potential Gate to Source+Potential Gate to Drain)/2 Go
Potential Gate to Drain
potential_gate_to_drain = 2*potential gate to collector-Potential Gate to Source Go
Static Current
static_current = Static power/Drain Voltage Go
Static Power Dissipation
static_power = static current*Drain Voltage Go

Carry-Ripple adder critical path delay Formula

ripple_time = propagation delay+(Gates On Critical Path-1)*Delay of the AND-OR gate+xor delay
Tripple = τ+(N-1)*tAO+Txor

What is latch up?

Latch-up pertains to a failure mechanism wherein a parasitic thyristor (such as a parasitic silicon controlled rectifier, or SCR) is inadvertently created within a circuit, causing a high amount of current to continuously flow through it once it is accidentally triggered or turned on. Depending on the circuits involved, the amount of current flow produced by this mechanism can be large enough to result in permanent destruction of the device due to electrical overstress (EOS) .

How to Calculate Carry-Ripple adder critical path delay?

Carry-Ripple adder critical path delay calculator uses ripple_time = propagation delay+(Gates On Critical Path-1)*Delay of the AND-OR gate+xor delay to calculate the Ripple Time, The Carry-Ripple adder critical path delay formula is defined as the cells are arranged along the vertical axis according to the time at which they operate this time is known ripple time in critical path delay. Ripple Time and is denoted by Tripple symbol.

How to calculate Carry-Ripple adder critical path delay using this online calculator? To use this online calculator for Carry-Ripple adder critical path delay, enter propagation delay (τ), Gates On Critical Path (N), Delay of the AND-OR gate (tAO) and xor delay (Txor) and hit the calculate button. Here is how the Carry-Ripple adder critical path delay calculation can be explained with given input values -> 48 = 20+(5-1)*5+8.

FAQ

What is Carry-Ripple adder critical path delay?
The Carry-Ripple adder critical path delay formula is defined as the cells are arranged along the vertical axis according to the time at which they operate this time is known ripple time in critical path delay and is represented as Tripple = τ+(N-1)*tAO+Txor or ripple_time = propagation delay+(Gates On Critical Path-1)*Delay of the AND-OR gate+xor delay. propagation delay is the amount of time it takes for the head of the signal to travel from the sender to the receiver, Gates On Critical Path total logic gate present, Delay of the AND-OR gate in the gray cell and xor delay is delay of the final sum XOR.
How to calculate Carry-Ripple adder critical path delay?
The Carry-Ripple adder critical path delay formula is defined as the cells are arranged along the vertical axis according to the time at which they operate this time is known ripple time in critical path delay is calculated using ripple_time = propagation delay+(Gates On Critical Path-1)*Delay of the AND-OR gate+xor delay. To calculate Carry-Ripple adder critical path delay, you need propagation delay (τ), Gates On Critical Path (N), Delay of the AND-OR gate (tAO) and xor delay (Txor). With our tool, you need to enter the respective value for propagation delay, Gates On Critical Path, Delay of the AND-OR gate and xor delay and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Ripple Time?
In this formula, Ripple Time uses propagation delay, Gates On Critical Path, Delay of the AND-OR gate and xor delay. We can use 10 other way(s) to calculate the same, which is/are as follows -
  • dynamic_power = Drain Voltage^2*frequency*Capacitance
  • drain_voltage = sqrt(dynamic power/frequency*Capacitance)
  • static_power = static current*Drain Voltage
  • static_current = Static power/Drain Voltage
  • channel_charge = Gate Capacitance*(Gate to Channel Voltage-Threshold voltage)
  • channel_charge = Gate Capacitance*(Gate to Channel Voltage-Threshold voltage)
  • gate_to_channel_voltage = (Channel Charge/Gate Capacitance)+Threshold voltage
  • threshold_voltage = Gate to Channel Voltage-(Channel Charge/Gate Capacitance)
  • potential_gate_to_collector = (Potential Gate to Source+Potential Gate to Drain)/2
  • potential_gate_to_drain = 2*potential gate to collector-Potential Gate to Source
Where is the Carry-Ripple adder critical path delay calculator used?
Among many, Carry-Ripple adder critical path delay calculator is widely used in real life applications like {FormulaUses}. Here are few more real life examples -
{FormulaExamplesList}
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