MCF52223DS Datasheet, PDF (26/56 Pages) Freescale Semiconductor, Inc – ColdFire Microcontroller

Electrical Characteristics
1.17 Power and Ground Pins
The pins described in Table 17 provide system power and ground to the chip. Multiple pins are provided for adequate current
capability. All power supply pins must have adequate bypass capacitance for high-frequency noise suppression.
Table 17. Power and Ground Pins
Signal Name
Abbreviation
Function
PLL Analog Supply
USB Power Supply
USB Ground Supply
Positive Supply
Ground
VDDPLL,
VSSPLL
V_DDUSB
V_SSUSB
VDD
VSS
Dedicated power supply signals to isolate the sensitive PLL analog
circuitry from the normal levels of noise present on the digital power
supply.
This pin supplies power to the USB Module.
This pin is the negative (ground) supply pin for the USB Module.
These pins supply positive power to the core logic.
This pin is the negative supply (ground) to the chip.
2 Electrical Characteristics
This section contains electrical specification tables and reference timing diagrams for the MCF52223 microcontroller unit,
including detailed information on power considerations, DC/AC electrical characteristics, and AC timing specifications.
NOTE
The parameters specified in this data sheet supersede any values found in the module
specifications.
MCF52223 ColdFire Microcontroller, Rev. 2
26
Freescale Semiconductor