Semiconductor & Computer Engineering
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Difference between revisions of "power-supply pin"
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=== Double letters === | === Double letters === | ||
| − | The letter following the ''V'' is used to represent the voltage the power supply should be providing for that transistor's terminal ('''C''' for collector, '''D''' for drain, '''E''' for emitter, and '''S'''). For example '''V<sub>cc</sub>''' means the voltage that should be delivered from the power supply to the collector. Note that this is different from '''V<sub>c</sub>''' which means the voltage of the collector itself. | + | The letter following the ''V'' is used to represent the voltage the power supply should be providing for that transistor's terminal ('''C''' for collector, '''D''' for drain, '''E''' for emitter, and '''S''' for source). For example '''V<sub>cc</sub>''' means the voltage that should be delivered from the power supply to the collector. Note that this is different from '''V<sub>c</sub>''' which means the voltage of the collector itself. |
== See also == | == See also == | ||
* [[pinout]] | * [[pinout]] | ||
| + | * [[not connected pin]] | ||
* [[IC package]] | * [[IC package]] | ||
Latest revision as of 19:19, 26 November 2015
power-supply pins (or power-supply terminals) are pins on integrated circuit packages that go to the die's common power rails.
Terms[edit]
While their usage varies from one manufacturer to another, most terms are more common to a specific technology. Some notable exceptions are known to exist, for example Intel used Vcc and Vss to represent +5V and 0V on some of their chips.
| BJT | FET | Description | |||||
|---|---|---|---|---|---|---|---|
| Vcc | Vdd | V+ | Vs+ | + | Positive supply voltage | ||
| Vee | Vss | V- | Vs- | VGND | - | GND | Negative supply voltage |
Double letters[edit]
The letter following the V is used to represent the voltage the power supply should be providing for that transistor's terminal (C for collector, D for drain, E for emitter, and S for source). For example Vcc means the voltage that should be delivered from the power supply to the collector. Note that this is different from Vc which means the voltage of the collector itself.