Linked Questions
23 questions linked to/from What is the difference between \$V_{CC}\$, \$V_{DD}\$, \$V_{EE}\$, \$V_{SS}\$
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What is Vee on a 74hc4051 mux? [duplicate]
The 74HC4051 Mux (spec is here: http://www.nxp.com/documents/data_sheet/74HC_HCT4051.pdf)
has 8 input/output pins labelled Y, one output/input pin labelled Z, three digital selectors S0, S1, S2, and ...
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MOSFET symbol - what is the correct symbol
I've been on this site now a couple of months and I notice various symbols used for MOSFETs. What is the preferred symbol for an N Channel MOSFET and why?
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4
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The various terms for voltage
I am trying to get a handle on some electrical circuit diagrams I've been encountering as I try to get back into electronics and building electronic gadgets. I've encountered a number of terms for ...
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What is VDD in this context?
On this page, the two versions of this gyro/accelerometer IC have two different Logic Supply Voltages.
What is the VDD voltage?
Why would one version of the chip also have an option to make the ...
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3
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Double-Subscript Notation for Voltages
I have read from some book that: "The voltage quantity symbol V sometimes has subscripts to designate the two points to which the voltage corresponds. If the letter a designates one point and b the ...
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Is VIN the same as VCC?
I have a HMC5883L and its pins are labeled SDA, SCL, DRDY, VIN, and GND. SO I am following this tutorial and it has a VCC pin but mine doesn't have it so I was wondering if VIN is the same as VCC ...
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VDD and VCC pin naming convention in the IC
My question is to find whether there can be a definitive answer to this particular part.
I have Cypress MBR3002 IC which has two power pins labelled VCC and VDD.
I got a question from my colleague ...
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Classification of VDD and VSS pins
I am creating a library component for KiCAD using a convenient online app at: http://kicad.rohrbacher.net/quicklib.php. The component I am making is the Microchip PIC24EP512GU814 in LQFP http://www....
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3
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Can I connect vcc to vdd?
I have an USB-UART cable. The connectors listed are Red VCC, Black GND, Green TXD, White cable RXD.
I want to connect it to a Alfa Hornet-UB board (http://www.youtube.com/watch?v=i58XOF4Rfc4) with ...
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3
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Eagle Schematic and Board layout design for simple opamp module questions
Hopefully I'm not doing anything illegal, I posted a very similar question a few days ago, but this one is different.
Here is what I've been working on the past couple days, trying out different ...
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Microcontroller VDD and VSS pins are shorted. Does that mean the MCU is fried?
I recently created my own breakout board for a STM32F030R8T6 MCU. The attached image shows the PCB that I designed for it. There are no components, only top copper tracks that get connected to header ...
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2
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What is the correct schematic symbol to use for virtual ground?
I'm following the design of a circuit requiring a power supply to provide something the author calls virtual ground, \$V_{gnd}\$. The circuit look like this:
However, I'm using KiCad for the design ...
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0
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5k
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Terminology - VDD vs VSS?
What is the correct voltage terminology for VDD and VSS?
I've been installing a Winstar WEH001602D OLED and was struggling until I realised that it appears to have pins 1 and 2 reversed compared to ...
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2
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Newbie: ATmega32u2 USB-powered - how to ground?
In ATmega32u2's reference manual, there's a diagram for USB-powered application like shown below.
Should I, or should I not, connect the GROUND to VSS/UVSS line? And why? If not, then what to do, ...
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What are Vcc and GND on a shift register?
What are Vcc and GND on a shift register?
I thought that I had to provide a positive voltage to the IC via the Vcc, but turns out that I can operate my shift register without powering the Vcc.
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