CIRCUIT CALCULATOR
Open source card ->Ring oscillator frequency
Change stage count and per-stage delay to see the extraction identity used by the public ring-oscillator card.
FIXED-DATA CALCULATORS
Move one number.
Read the boundary.
These calculators answer the benchmark gap without opening risky execution. They use visible teaching formulas and route back to the SemiAgora evidence cards that explain what the number can and cannot claim.
CALCULATOR WORKBENCH
Small controls, explicit non-claims.
Competitor portals often win by letting visitors calculate immediately. SemiAgora's version keeps every control tied to public route evidence, formulas, and limitations.
MEMORY CALCULATOR
SRAM assist margin delta
Select a public assist case and compare the minimum successful wordline against the baseline shmoo interpretation.
Negative means the teaching shmoo needs less wordline voltage than the 1.20 V baseline.
Open source lab ->RETENTION CALCULATOR
Open source lab ->DRAM refresh deadline
Use the lumped retention teaching value and a policy fraction to place a conservative refresh marker.
MODE CONTRACT
What each calculator is allowed to be.
The calculator page is a learning surface. It is not an EDA backend, model-deck processor, foundry flow, memory qualification workflow, or confidential data tool.
f = 1 / (2 x stages x delay)
Educational estimator using user-visible numbers only; not a timing signoff engine.
Open evidence route ->margin delta = selected minimum WL - baseline minimum WL
Uses the public shmoo interpretation pattern; no private netlists or model decks.
Open evidence route ->refresh deadline = retention time x policy fraction
Lumped teaching model only; not a JEDEC timing or product-retention claim.
Open evidence route ->