Datasheet

47
AT32UC3A
•V
DDCORE
= 1.8V
• Ambient Temperature = 25°C
12.6.1 CPU/HSB Clock Characteristics
12.6.2 PBA Clock Characteristics
12.6.3 PBB Clock Characteristics
12.7 Crystal Oscillator Characteristis
The following characteristics are applicable to the operating temperature range: T
A
= -40°C to 85°C and worst case of
power supply, unless otherwise specified.
12.7.1 32 KHz Oscillator Characteristics
Note: 1. C
L
is the equivalent load capacitance.
Table 12-11. Core Clock Waveform Parameters
Symbol Parameter Conditions Min Max Units
1/(t
CPCPU
) CPU Clock Frequency 66 MHz
t
CPCPU
CPU Clock Period 15,15 ns
Table 12-12. PBA Clock Waveform Parameters
Symbol Parameter Conditions Min Max Units
1/(t
CPPBA
) PBA Clock Frequency 66 MHz
t
CPPBA
PBA Clock Period 15,15 ns
Table 12-13. PBB Clock Waveform Parameters
Symbol Parameter Conditions Min Max Units
1/(t
CPPBB
) PBB Clock Frequency 66 MHz
t
CPPBB
PBB Clock Period 15,15 ns
Table 12-14. 32 KHz Oscillator Characteristics
Symbol Parameter Conditions Min Typ Max Unit
1/(t
CP32KHz
) Crystal Oscillator Frequency 32 768 Hz
C
L
Equivalent Load Capacitance 6 12.5 pF
t
ST
Startup Time
C
L
= 6pF
(1)
C
L
= 12.5pF
(1)
600
1200
ms
I
OSC
Current Consumption
Active mode 1.8 µA
Standby mode 0.1 µA
32058KS–AVR32–01/12