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negative logic

   Also found in: Medical, Legal, Wikipedia 0.06 sec.

negative logic

The use of high voltage for a 0 bit and low voltage for a 1 bit. Contrast with positive logic.


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.


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The C-BUS (model CBQ4248G1) is available in both positive and negative logic modules and is priced at $48 for OEM quantities.
The CBQ5 (part number CBQ53348H1) is available in open-frame and base-plate versions as well as both positive and negative logic modules and is priced starting at $32 for quantities of 1,000 units.
It also incorporates under voltage lockout with hysteresis as well as an output trim pin and an enable pin with positive or negative logic controls.
 
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