VCCA refers to the high potential of the analog power supply.
VCCA VCCD difference? What is the difference between VSSA and VSSD?
VCC refers to the high potential of the power supply,
VCCA refers to the high potential of the analog power supply,
VCCD refers to the high potential of the digital power supply.
VSS refers to low potential, which is equivalent to GND.
A and D are analog and digital respectively.
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