What is Vcc, Vss, Vdd, Vee in Electronics? Differences and Full Forms


You may notice electronic ICs have these pins Vcc, Vss, Vdd, Vee. Some ICs has Vcc and GND, some have Vdd and Vss, some have Vcc and Vee. Now the question is what is the full form or meaning of these pins and why different names are used for different ICs. You may also notice, in electronic circuits these names are used with their power supply terminals. So, let's know why different names are used.


Full Forms of Vcc, Vss, Vdd, Vee


Vcc = Voltage Collector Collector
Vdd = Voltage Drain Drain
Vss = Voltage Source Source
Vee = Voltage Emitter Emitter
GND = Ground



Now you may think why there is double terms are used such as Collector Collector, Drain Drain, etc.

These double terms refer that the particular pin connected to the many transistors, not to a single transistor. For example, the Vcc not connected only to a single transistor, it connected with many transistors.


What is Vcc, Vss, Vdd, Vee?


Vcc and Vdd are the positive supply voltage to an IC or circuit.
Vss and Vee are the negative supply voltage to an IC or electronic circuit.


Why different names are used?

We know that BJT(Bipolar Junction Transistor) has three terminal named as Emitter, Base, and Collector.
FET(Field Effect Transistor) also has three terminals named as Gate, Drain, and Source.



So when an electronic circuit or IC is made using Bipolar Junction Transistors then the supply voltage pins are denoted as Vcc and Vee

Vcc refers that the supply voltage pin is connected to the collector of the transistors.
Vee refers that the supply voltage pin is connected to the emitter of the transistors.

Vcc, Vss, Vdd, Vee in Electronics


When an electronic circuit or IC is made using Filed Effect Transistors the supply voltage pins are denoted as Vdd and Vss

Vdd refers that the supply voltage pin is connected to the drain of the transistor.
Vss refers that the supply voltage pin is connected to the source of the transistor.


Supply Voltage
BJT
(Bipolar Junction Transistor)
FET
(Field Effect Transistor)
Positive Supply Voltage
Vcc
Vdd
Negative Supply Voltage
Vee
Vss




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What is Vcc, Vss, Vdd, Vee in Electronics? Differences and Full Forms What is Vcc, Vss, Vdd, Vee in Electronics? Differences and Full Forms Reviewed by ETechnoG on 07:50 Rating: 5
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