VCCD refers to the high potential of digital power supply.
"VCCD" typically refers to "Voltage Source Supply Core Digital." In electronics and integrated circuit design, VCCD represents the supply voltage or power source for the digital core components of a device or chip. It provides the necessary voltage for the operation of digital logic gates, processors, memory, and other digital circuitry within the system.
VCCD is a crucial part of the power distribution network in electronic devices, and it's often designed to be separate from other supply voltages like VCCA (Analog Core Supply) or VCCIO (Input/Output Supply) to prevent noise and interference between analog and digital components. The voltage level of VCCD depends on the specific requirements of the digital circuitry and the technology used in the device, such as 3.3V, 5V, or other voltage levels commonly used in digital electronics.
VCC refers to the high potential of the power supply,
VCCA refers to the high potential of the analog power supply,
VSS refers to low potential, which is equivalent to GND.
A and D are analog and digital respectively.
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