![]() What is a switching function that has more than one output called in digital electronics?Įxplanation: multi-output function is a switching function that will have more than one output. A universal logic gate is one, which can be used to generate any logic function. Why is a pull-up resistor needed when connecting TTL logic to CMOS logic? An open collector output can current, but it cannot. Why is a pull-up resistor needed for an open collector gate?Ī pull-up resistor is a resistor used to keep a given point in a circuit HIGH when in the active state. Input capacitance of the circuit, ‘Cin’, does not decrease as much as supply voltage reduces. What does not happen on decreasing the supply voltage in a CMOS inverter? (see What is a Sinking or Sourcing input?) This type of an output allows you to sink more current than a Totem Pole output and follow the input voltage. They should be left disconnected so as not to produce a load on any of the other circuits and to minimize power loading on the voltage source.Ī Push-Pull output is an output that allows you to connect either a sinking or sourcing circuit. What should be done to unused inputs on TTL gates?. What should be done to unused inputs on TTL gates? See also What's the easiest thing to knit? What is an open collector input?Īn open collector is a common type of output found on many integrated circuits (IC), which behaves like a switch that is either connected to ground or disconnected.
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