Peripheral Clock Tree Propagation Delay Analyzer for Microcontroller Timing Closure Calculator

Quick Answer

Calculate Peripheral Clock Tree Propagation Delay Analyzer for Microcontroller Timing Closure

Result Interpretation

Peripheral Clock Tree Propagation Delay Analyzer for Microcontroller Timing Closure Calculator computes Peripheral Clock Tree Propagation Delay in s using the defined engineering formula and the input values provided.

Worked Example

Verified calculation

Given:

Maximum Clock Tree Fanout = 8
Base Buffer Delay per Stage = 8.0E-10
Clock Generator Output Delay = 1.2E-9
Clock Skew Safety Margin = 3.5E-10
Equivalent Interconnect Capacitance = 6.2E-15
Equivalent Interconnect Resistance = 32
PVT Derating Factor = 1.32

Expected Result:

Peripheral Clock Tree Propagation Delay = 6.2996421314396E-9

Engineering Interpretation:

Under the given input conditions, the calculated result is: Peripheral Clock Tree Propagation Delay = 6.2996421314396E-9 s.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.

Formula / Method

peripheral clock tree propagation delay = (clock generator output delay + base buffer delay per stage * pow(maximum clock tree fanout, 0.67) + equivalent interconnect resistance * equivalent interconnect capacitance + clock skew safety margin) * pvt derating factor

Formula family: formula_embedded_peripheral_clock_tree_propagation_delay_analyzer

Variables

Symbol	Label	Role	Description
t_clkgen	Clock Generator Output Delay	INPUT	Clock Generator Output Delay
t_buffer	Base Buffer Delay per Stage	INPUT	Base Buffer Delay per Stage
fanout	Maximum Clock Tree Fanout	INPUT	Maximum Clock Tree Fanout
r_interconnect	Equivalent Interconnect Resistance	INPUT	Equivalent Interconnect Resistance
c_interconnect	Equivalent Interconnect Capacitance	INPUT	Equivalent Interconnect Capacitance
t_skew_margin	Clock Skew Safety Margin	INPUT	Clock Skew Safety Margin
pvt_derating_factor	PVT Derating Factor	INPUT	PVT Derating Factor
propagation_delay	Peripheral Clock Tree Propagation Delay	OUTPUT	Peripheral Clock Tree Propagation Delay

Calculation Steps

Enter the clock generator output delay in s.
Enter the base buffer delay per stage in s.
Enter the maximum clock tree fanout in dimensionless.
Enter the equivalent interconnect resistance in ohm.
Enter the equivalent interconnect capacitance in F.
Enter the clock skew safety margin in s.
Enter the pvt derating factor in dimensionless.
Step 1: Compute peripheral clock tree propagation delay.
Read the peripheral clock tree propagation delay (s) from the results.

Engineering Summary

Calculate Peripheral Clock Tree Propagation Delay Analyzer for Microcontroller Timing Closure

Frequently Asked Questions

What does this calculator calculate?

The Peripheral Clock Tree Propagation Delay Analyzer for Microcontroller Timing Closure Calculator estimates Peripheral Clock Tree Propagation Delay based on the input parameters you provide

Why is clock generator output delay important in this calculation?

clock generator output delay is directly proportional to peripheral clock tree propagation delay. When you enter clock generator output delay in s, the calculator uses it in the engineering formula to compute the output

How should I interpret the result peripheral clock tree propagation delay?

The calculator outputs peripheral clock tree propagation delay in s. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Clock Generator Output Delay (s), Base Buffer Delay per Stage (s), Maximum Clock Tree Fanout (dimensionless), Equivalent Interconnect Resistance (ohm), Equivalent Interconnect Capacitance (F), Clock Skew Safety Margin (s), PVT Derating Factor (dimensionless). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment