For multi-part packages, like many logic gates, the schematic symbols need to be broken apart, since you rarely use them all in one place in your schematic. The same applies to dual or quad op amps.

Figure 1 Digital logic ground symbol seen in most schematic diagrams. These seemingly conflicting methods for dealing with ground can be a bit confusing. We’ll start by clarifying what ground is, ...

Schematics.com is a new, free website that offers an on-line schematic entry tool. There’s not much new about that, ... I don’t care for the logic symbols, which are all just boxes. Need some NAND ...

More importantly, SamacSys will fully support all of Mouser's new product introductions, giving engineers access to a current, high-quality library of PCB footprints, schematic symbols, and 3D ...