Jiri Pinkava 495444d353 74xx: fix 74LS242 missing NC pins
The missing NC pins were causing an issue with package, because only 12
pins were present, but the package filter required DIP-14 (which is
correct), resulting in invalid package list.

https://unicornelectronics.com/ftp/Data%20Sheets/74ls242-243.pdf

The name offset was fixed to match with KCL.

* 74xx: fix 74LS242 missing NC pins

See merge request https://gitlab.com/kicad/libraries/kicad-symbols/-/merge_requests/5447
2026-03-16 18:51:34 +01:00

KiCad Symbols

This repository contains the official KiCad schematic symbol libraries.

The libraries in this repository are intended for KiCad version 10.x

Each symbol library is stored unpacked as a .kicad_symdir directory, each containing multiple symbol files (also ending in .kicad_sym).

Contribution guidelines can be found at http://kicad.org/libraries/contribute The library convention can be found at http://kicad.org/libraries/klc/

Other KiCad library repositories are located:

Packaging

This repository uses CMake to prepare the libraries for installation.

Library packing

The libraries in this repository are in unpacked format for ease of contribution and version control. This means that each symbol is stored as a text-based .kicad_sym file and each library is a directory containing multiple such files. A packed library is a single text-based .kicad_sym file containing all the symbols in that library.

It's recommended to pack the libraries before use in KiCad for improved end-user performance.

To pack the libraries, you will need to have CMake and Python installed.

To disable packing of the libraries, set the CMake option KICAD_PACK_SYM_LIBRARIES to OFF when configuring the build.

Building libraries

From the root of this repository, create a build directory and run CMake:

mkdir build
cd build
cmake .. -D KICAD_PACK_SYM_LIBRARIES=<ON|OFF>

Then build the libraries with:

cmake --build .

Installation

You can install the prepared libraries with CMake:

cmake --build . -- install

Set CMAKE_INSTALL_PREFIX and DESTDIR as needed to control the installation location, which will depend on your packaging system.

Description
Official KiCad schematic symbol libraries
Readme 184 MiB