Table 4-1.
Single 3.3V power supply checklist.
Signal name
Recommended pin connection
3.0V to 3.6V
RF EMI inductor
Decoupling/filtering capacitor,
(1)
100nF to GNDANA
Connect to analog ground
3.0V to 3.6V
3.0V to 3.6V
3.0V to 3.6V
Decoupling/filtering capacitors,
(1)(2)
and 470pF
(1)(2)
2.2µF
Connect to digital ground
Connect to digital ground
Connect to digital ground
Description
VDDANA
Analog power supply
GNDANA
VDDIO
VDDIN_5
VDDIN_33
VDDCORE
GNDCORE
GNDPLL
GNDIO
Notes:
Analog ground
Powers I/O lines and the flash memory
Input voltage for the 1.8V regulator
USB I/O power supply
Stabilization output for the 1.8V regulator
Decoupling/filtering capacitors must be added to ensure regulator stability
1. These values are given only as a typical example
2. Decoupling capacitor should be placed as close as possible to the pin
4
AVR32768
32157A-AVR-12/10
ATMEL [ ATMEL CORPORATION ]
