0
\$\begingroup\$

I'm analyzing the schematics of Lenovo_G530_N500_-_COMPAL_LA-4212P_JIWA3_JIWA4_-_REV_1.0Sec. I have across scenarios where there is a circle next to a component pin. What does this circle symbolize? I have attached the screen shot for my question.

screenshot of part of a schematic

I have tried looking for a proper answer on the internet, but no satisfactory answer found.

\$\endgroup\$
1
  • 6
    \$\begingroup\$ It usually denotes active low signals. circle is similar to the circle seen in NOT gates. \$\endgroup\$
    – AJN
    Jul 4, 2020 at 11:52

1 Answer 1

5
\$\begingroup\$

The circle denotes that the pin is of type Active Low.

https://en.wikipedia.org/wiki/Logic_level#Active_state tells that it is also indicated by

a trailing #

\$\endgroup\$
3

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.