TSB means a Tri-State Boolean.
It can also be called as Three-Valued Logic (TVL).
More information about T.S.B. can be found in Wikipedia:
https://en.wikipedia.org/wiki/Three-valued_logic
TSB means a Tri-State Boolean.
It can also be called as Three-Valued Logic (TVL).
More information about T.S.B. can be found in Wikipedia:
https://en.wikipedia.org/wiki/Three-valued_logic