4000 Series Logic Reference Cards

Mid-70s CMOS called and wants the past dues

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A set of 4x6in. reference cards for the entire family of the CD4000 and MC14000-series logic chips available today from TI, and for a few important but obsolete ones.

I find that I am most productive when working with a given logic family when I have a visual, concise reference. Thus I've digitally drawn the entire TI CD4000 logic portfolio on a set of 4x6 reference cards. Included are also a few obsolete but still useful chips available on the secondary market, like the 4008 adder for example.

The CD4000 logic family is alive and well, and most of it is still made by TI with the exception of the 4008 adder. All of the 14- and 16-pin functions are still sold in DIP. The 24-pin functions are offered in surface-mount packages only.

This logic family is well suited for unregulated supplies over a wide 5:1 range - from 3V to 15V. It is also fairly slow and has low EMI. It interoperates very well with low-noise analog circuitry.

The standard drive outputs can drive LEDs directly from 3V up to 5V supplies - no resistors needed. The standard drive outputs in practice survive shorts to supply rails up to 5V, and possibly even higher, although local die heating becomes problematic then.

I've done the drawings in Goodnotes, and have included both the source file as well as a PDF render in the files section.

This project is licensed under the Attribution Non-Commercial International 4.0 (CC-BY-NC 4.0) license.

It is my hope that the homebrew CPU community will find this reference useful, as well as anyone building "retro" circuits. Far from obsolete, the CD4000 logic family finds many uses today due to its versatility and docility.

CD4000 Logic Reference rev.2 plain bg.pdf

4x6 PDF with plain background

Adobe Portable Document Format - 30.03 MB - 05/21/2023 at 02:17


goodnotes - 22.06 MB - 05/21/2023 at 02:17


CD4000 Logic Reference rev.2 grid bg.pdf

4x6 PDF with grid background

Adobe Portable Document Format - 30.05 MB - 05/21/2023 at 02:17


x-zip-compressed - 8.48 MB - 05/21/2023 at 02:17


  • 1

    The cards can be printed on standard paper and cut down to size, but I found it easiest to print them on 4x6 inkjet photo paper or card stock

    I have good results printing on matte HP inkjet printer 4x6 photo paper, using a color laser printer.

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