at91sam9260-cj ATMEL Corporation, at91sam9260-cj Datasheet - Page 728

• Manufacturer Part Number: at91sam9260-cj
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

41.4
41.4.1
Table 41-5.
41.4.2
Table 41-6.
41.4.3
Table 41-7.
Note:
728
Symbol
1/(t
1/(t
Symbol
1/(t
1/(t
Symbol
1/(t
t
t
t
C
R
CPXIN
CHXIN
CLXIN
IN
IN
CPPCK
CPPCK
CPMCK
CPMCK
CPXIN
Clock Characteristics
1. These characteristics apply only when the Main Oscillator is in bypass mode (i.e. when MOSCEN = 0 and OSCBYPASS = 1)
)
)
)
)
)
AT91SAM9260
Processor Clock Characteristics
Master Clock Characteristics
XIN Clock Characteristics
in the CKGR_MOR register. See “PMC Clock Generator Main Oscillator Register” in the PMC section.
Processor Clock Waveform Parameters
Master Clock Waveform Parameters
XIN Clock Electrical Characteristics
Parameter
Processor Clock Frequency
Processor Clock Frequency
Parameter
Master Clock Frequency
Master Clock Frequency
Parameter
XIN Clock Frequency
XIN Clock Period
XIN Clock High Half-period
XIN Clock Low Half-period
XIN Input Capacitance
XIN Pulldown Resistor
Conditions
VDDCORE = 1.65V
T = 85°C
VDDCORE = 1.8V
T = 85°C
Conditions
VDDCORE = 1.65V
T = 85°C
VDDCORE = 1.8V
T = 85°C
Conditions
(1)
(1)
0.4 x t
0.4 x t
Min
Min
Min
20
CPXIN
CPXIN
0.6 x t
0.6 x t
1000
Max
Max
Max
94.5
189
210
105
50
25
CPXIN
CPXIN
6221G–ATARM–31-Jan-08
Units
Units
Units
MHz
MHz
MHz
MHz
MHz
kΩ
pF
ns
ns
ns