at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 998

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

46.4
These parameters are given in the specified conditions.
46.4.1
Table 46-5.
46.4.2
Table 46-6.
46.4.3
Table 46-7.
Notes:
46.4.4
998
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 =
)
)
)
)
)
AT91SAM9263 Preliminary
Processor Clock Characteristics
Master Clock Characteristics
XIN Clock Characteristics
I/Os
1 in the CKGR_MOR register).
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
Criteria used to define the maximum frequency of the I/Os:
• output duty cycle (40%-60%)
• minimum output swing: 100 mV to VDDIO - 100 mV
Conditions
VDDCORE = 1.1V
T = 85°C
VDDCORE = 1.2V
T = 85°C
Conditions
VDDCORE = 1.1V
T = 85°C
VDDCORE = 1.2V
T = 85°C
Conditions
(1)
(1)
0.4 x t
0.4 x t
20.0
Min
Min
Min
CPXIN
CPXIN
0.6 x t
0.6 x t
Max
50.0
500
Max
Max
25
200
240
100
120
CPXIN
CPXIN
6249D–ATARM–20-Dec-07
MHz
Unit
MHz
MHz
MHz
MHz
Unit
Unit
kΩ
pF
ns