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Physical / electrical concepts

Sub-sheet

One file inside a hierarchical schematic. Reusable, scoped.

How it looks

Real image: the CORE3588 schematic, exported by KiCad (shown in greys)
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The top sheet of the CORE3588 schematic, as KiCad draws it: just two boxes, each standing for a whole sub-sheet. (The lines crossing them are the page frame.)

How it works

  1. A sub-sheet is one file (for example 1_P1.kicad_sch) inside a hierarchical schematic.
  2. The parent sheet shows it as a box; opening the box shows its circuit.
  3. The same sub-sheet can be placed several times (six identical camera blocks could be one sheet used six times), and its names stay local to it.

Where it fits

Part of a hierarchical schematic. Not the same as a symbol's sub-unit.

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