Free · Strategic silicon reversible simulated
Reversible 3-bit adder
Reversible adder composed from Toffoli tiles. Carry-preserving, energy-bounded; demonstrates Landauer-limit-respecting addition on sky130.
Process targets
- · sky130
License
Apache-2.0
Origin: internal · open-source
Faux-moat bypassed
Reversible arithmetic units exist in papers but not as fab-ready sky130 hardened cells. Customers must compose from gates.
Value to customer
Reference implementation for energy-bounded arithmetic. Foundation for reversible compute engines and adiabatic processor blocks.
Periodic Stack primitives
reversible-addertoffoli-gate
last curated: 2026-06-05 status: catalog-ready