logic level การใช้

• Nearly all digital circuits use a consistent logic level for all internal signals.
• Additionally, the asymmetric input logic levels make PMOS circuits susceptible to noise.
• DTMF digit D is logic level 0 on all 4 bits from the MT8870.
• ECL circuits available on the open market usually operated with logic levels incompatible with other families.
• The master then selects the slave device with a logic level 0 on the select line.
• FeaturePak cards are powered by 3.3V and use standard 3.3V logic levels.
• It holds the logic signal at a low logic level when no other active device is connected.
• When many logic levels need to be observed or recorded simultaneously, a logic analyzer is used.
• The motherboard can determine if the dongle is plugged in by examining the logic level on pin 4.
• From such a graph, device parameters including noise tolerance, gain, and operating logic levels can be obtained.
• Digital delay generator outputs are typically logic level, but some offer higher voltages to cope with electromagnetic interference environments.
• Separate interface devices are used to convert the logic level signals of the UART to and from the external signalling levels.
• The cable was terminated at each end to prevent reflections and to guarantee high logic levels when the bus was undriven.
• Since these diodes are treated as ideal, the output is clamped to 0 volts, which is logic level 0.
• Similar to the diode OR, R can return to any voltage that is more positive than the logic level 1.
• A level shifter connects one digital circuit that uses one logic level to another digital circuit that uses another logic level.
• A level shifter connects one digital circuit that uses one logic level to another digital circuit that uses another logic level.
• This is not a logic level, but means that the output is not controlling the state of the connected circuit.
• This problem was solved by the invention of the 74HCT family of devices that uses CMOS technology but TTL input logic levels.
• A level command is exactly like a logic pulse command except that a logic level is delivered instead of a logic pulse.