negative logic


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negative logic

[′neg·əd·iv ‚läj·ik]
(electronics)
Logic circuitry in which the more positive voltage (or current level) represents the 0 state; the less positive level represents the 1 state.

negative logic

The use of high voltage for a 0 bit and low voltage for a 1 bit. Contrast with positive logic.
References in periodicals archive ?
The LT3091 s bidirectional shutdown capability allows the device to operate with either positive or negative logic levels.
In this light, it is easier to understand the negative logic of the outrageous iconic building, the way it seeks to provoke a paranoid reaction, especially among journalists.
The new snap-on modules offer higher density discrete input and output capabilities, negative logic discrete, additional analog input and output options, a higher-speed counter input, and new power and segment terminals with build-in fusing and diagnostics.
Other features include over-temperature thermal shutdown and over-voltage protection for more reliable power system operation, a "power good" signal option and positive or negative logic shutdown for implementing remote on/off control.
LARS NITTVE: It seems that Catherine David clearly wanted to avoid the most obvious choices, and the result of this is that all decisions seem to follow a kind of negative logic.