chipflow.packaging.standard
===========================

.. py:module:: chipflow.packaging.standard

.. autoapi-nested-parse::

   Standard package definitions for common package types.

   This module provides concrete package definitions for:
   - Quad packages (QFN, LQFP, TQFP, etc.)
   - Bare die packages



Classes
-------

.. autoapisummary::

   chipflow.packaging.standard.BareDiePackageDef
   chipflow.packaging.standard.QuadPackageDef


Module Contents
---------------

.. py:class:: BareDiePackageDef

   Bases: :py:obj:`chipflow.packaging.base.LinearAllocPackageDef`


   Definition of a package with pins on four sides.

   Sides are labeled north, south, east, west with an integer
   identifier within each side, indicating pads across or down
   from top-left corner.

   This is typically used for direct die attach without traditional
   packaging.

   Attributes:
       width: Number of die pads on top and bottom sides
       height: Number of die pads on left and right sides


   .. py:method:: model_post_init(__context)

      Initialize pin ordering



   .. py:property:: bringup_pins
      :type: chipflow.packaging.pins.BringupPins


      Bringup pins for bare die package


.. py:class:: QuadPackageDef

   Bases: :py:obj:`chipflow.packaging.base.LinearAllocPackageDef`


   Definition of a quad flat package.

   A package with 'width' pins on the top and bottom and 'height'
   pins on the left and right. Pins are numbered anti-clockwise
   from the top left pin.

   This includes many common package types:

   - QFN: quad flat no-leads (bottom pad = substrate)
   - BQFP: bumpered quad flat package
   - BQFPH: bumpered quad flat package with heat spreader
   - CQFP: ceramic quad flat package
   - EQFP: plastic enhanced quad flat package
   - FQFP: fine pitch quad flat package
   - LQFP: low profile quad flat package
   - MQFP: metric quad flat package
   - NQFP: near chip-scale quad flat package
   - SQFP: small quad flat package
   - TQFP: thin quad flat package
   - VQFP: very small quad flat package
   - VTQFP: very thin quad flat package
   - TDFN: thin dual flat no-lead package
   - CERQUAD: low-cost CQFP

   Attributes:
       width: The number of pins across on the top and bottom edges
       height: The number of pins high on the left and right edges


   .. py:method:: model_post_init(__context)

      Initialize pin ordering



   .. py:property:: bringup_pins
      :type: chipflow.packaging.pins.BringupPins


      Bringup pins for quad package