For detailed technical specifications and hardware requirements, designers can refer to the OrCAD/Allegro 22.1 Installation Guide . Official release notes and feature summaries are available on the Cadence Community blog . Cadence OrCAD and Allegro 22.1 is Now Available
: Designers can now check for physical violations between models, the PCB, and rigid-flex objects directly within the 3D environment.
: Logical boards now support an "Ignore Subsystem" option to exclude specific blocks from navigation and connectivity reports, simplifying the management of complex multi-board systems. Analysis and Simulation with Sigrity and PSpice cadence orcad and allegro 221 full
One of the primary focuses of the 22.1 release is speed and scalability for complex designs.
: Design Rule Check (DRC) performance has been dramatically improved. For designs with negative layers, checks like "Negative Island" are up to 20 times faster. : Logical boards now support an "Ignore Subsystem"
: PSpice now supports frequency-varying impedance via CSV tables and includes a Noise Analysis report that identifies top noise contributors automatically.
: The "Update to Smooth" command is significantly faster due to a new PolyBool engine, reducing processing time for some designs from an hour to mere minutes. For designs with negative layers, checks like "Negative
: The 22.1 release introduces ALLOW_PINTEXT_SWAP , which ensures that pin text is swapped along with pin numbers during backannotation.
has received numerous updates to improve user response times and connectivity management.