Datasheet
19
9166DS–AVR-01/12
AT32UC3C
VDDIN_5 1.8V Voltage Regulator Input
Power
Input
Power Supply:
4.5V to 5.5V
or
3.0V to 3.6 V
VDDIN_33 USB I/O power supply
Power
Output/
Input
Capacitor Connection for the 3.3V
voltage regulator
or power supply:
3.0V to 3.6 V
VDDCORE 1.8V Voltage Regulator Output
Power
output
Capacitor Connection for the 1.8V
voltage regulator
GNDIO1
GNDIO2
GNDIO3
I/O Ground Ground
GNDANA Analog Ground Ground
GNDCORE Ground of the core Ground
GNDPLL Ground of the PLLs Ground
Analog Comparator Interface - ACIFA0/1
AC0AN1/AC0AN0 Negative inputs for comparator AC0A Analog
AC0AP1/AC0AP0 Positive inputs for comparator AC0A Analog
AC0BN1/AC0BN0 Negative inputs for comparator AC0B Analog
AC0BP1/AC0BP0 Positive inputs for comparator AC0B Analog
AC1AN1/AC1AN0 Negative inputs for comparator AC1A Analog
AC1AP1/AC1AP0 Positive inputs for comparator AC1A Analog
AC1BN1/AC1BN0 Negative inputs for comparator AC1B Analog
AC1BP1/AC1BP0 Positive inputs for comparator AC1B Analog
ACAOUT/ACBOUT analog comparator outputs output
ADC Interface - ADCIFA
ADCIN[15:0] ADC input pins Analog
ADCREF0 Analog positive reference 0 voltage input Analog
ADCREF1 Analog positive reference 1 voltage input Analog
ADCVREFP
Analog positive reference connected to external
capacitor
Analog
Table 3-7. Signal Description List
Signal Name Function Type
Active
Level Comments