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## Credits

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat
Shobhit Dimri has created this Calculator and 500+ more calculators!
Vishwakarma Government Engineering College (VGEC), Ahmedabad
Urvi Rathod has verified this Calculator and 1000+ more calculators!

## Fall time Solution

STEP 0: Pre-Calculation Summary
Formula Used
fall_time = 2*Edge rate-Rise time
tf = 2*trf-tr
This formula uses 2 Variables
Variables Used
Edge rate- Edge rate is Rise/fall times are also sometimes called slopes or edge rates.
Rise time - Rise time is the time required to reach at final value by a under damped time response signal during its first cycle of oscillation. (Measured in Second)
STEP 1: Convert Input(s) to Base Unit
Edge rate: 6 --> No Conversion Required
Rise time: 50 Second --> 50 Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
tf = 2*trf-tr --> 2*6-50
Evaluating ... ...
tf = -38
STEP 3: Convert Result to Output's Unit
-38 --> No Conversion Required
FINAL ANSWER
-38 <-- fall time
(Calculation completed in 00.000 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

### Fall time Formula

fall_time = 2*Edge rate-Rise time
tf = 2*trf-tr

## Explain Sizing Of The Inverter?

In order to drive the desired load capacitance we have to increase the size (width) of the inverters to get an optimized performance.

## How to Calculate Fall time?

Fall time calculator uses fall_time = 2*Edge rate-Rise time to calculate the fall time, The Fall time formula is defined as time for a waveform to fall from 80% to 20% of its steady-state value. fall time and is denoted by tf symbol.

How to calculate Fall time using this online calculator? To use this online calculator for Fall time, enter Edge rate (trf) and Rise time (tr) and hit the calculate button. Here is how the Fall time calculation can be explained with given input values -> -38 = 2*6-50 .

### FAQ

What is Fall time?
The Fall time formula is defined as time for a waveform to fall from 80% to 20% of its steady-state value and is represented as tf = 2*trf-tr or fall_time = 2*Edge rate-Rise time . Edge rate is Rise/fall times are also sometimes called slopes or edge rates and Rise time is the time required to reach at final value by a under damped time response signal during its first cycle of oscillation.
How to calculate Fall time?
The Fall time formula is defined as time for a waveform to fall from 80% to 20% of its steady-state value is calculated using fall_time = 2*Edge rate-Rise time . To calculate Fall time, you need Edge rate (trf) and Rise time (tr). With our tool, you need to enter the respective value for Edge rate and Rise time 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 fall time?
In this formula, fall time uses Edge rate and Rise time. 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 Fall time calculator used?
Among many, Fall time calculator is widely used in real life applications like {FormulaUses}. Here are few more real life examples -
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