Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD 数据表
产品代码
AT32UC3A3-XPLD
972
32072H–AVR32–10/2012
AT32UC3A3
36.8
Oscillator Characteristics
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.
36.8.1
Slow Clock RC Oscillator
36.8.2
32 KHz Oscillator
Note:
1. C
L
is the equivalent load capacitance.
Table 36-17. RC Oscillator Frequency
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
F
RC
RC Oscillator Frequency
Calibration point: T
A
= 85°C
115.2
116
KHz
T
A
= 25°C
112
KHz
T
A
= -40°C
105
108
KHz
Table 36-18. 32 KHz Oscillator Characteristics
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
1/(t
CP32KHz
)
Oscillator Frequency
External clock on XIN32
30
MHz
Crystal
32 768
Hz
C
L
Equivalent
Load
Capacitance
6
12.5
pF
ESR
Crystal Equivalent Series Resistance
100
K
Ω
t
ST
Startup Time
C
L
= 6pF
(1)
C
L
= 12.5pF
(1)
600
1200
ms
t
CH
XIN32 Clock High Half-period
0.4 t
CP
0.6 t
CP
t
CL
XIN32 Clock Low Half-period
0.4 t
CP
0.6 t
CP
C
IN
XIN32 Input Capacitance
5
pF
I
OSC
Current Consumption
Active mode
1.8
µA
Standby mode
0.1
µA