179
6174B–ATARM–07-Nov-05
AT91FR40162S Preliminary
19.6
Clock Waveforms
Figure 19-1. Clock Waveform
Table 19-7.
Master Clock Waveform Parameters
Symbol
Parameter
Conditions
Min
Max
Units
1/(t
CP
)
Oscillator Frequency
82.1
MHz
t
CP
Oscillator Period
12.2
ns
t
CH
High Half-period
5.0
ns
t
CL
Low Half-period
5.5
ns
Table 19-8.
Clock Propagation Times
Symbol
Parameter
Conditions
Min
Max
Units
t
CDLH
Rising Edge Propagation Time
C
MCKO
= 0 pF
4.4
6.6
ns
C
MCKO
derating
0.199
0.295
ns/pF
t
CDHL
Falling Edge Propagation Time
C
MCKO
= 0 pF
4.5
6.7
ns
C
MCKO
derating
0.153
0.228
ns/pF
t
CH
t
CL
t
CP
MCKI
MCKO
t
CDLH
t
CDHL
2.0V
2.0V
0.8V
0.8V
0.8V
0.5 V
DDIO
0.5 V
DDIO
Table 19-9.
NRST to MCKO
Symbol
Parameter
Min
Max
Units
t
D
NRST Rising Edge to MCKO Valid Time
3(t
CP
/2)
7(t
CP
/2)
ns
Содержание AT91FR40162S
Страница 180: ...180 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary Figure 19 2 MCKO Relative to NRST NRST tD MCKO...
Страница 195: ...195 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary 20 5 2 CE Controlled Figure 20 15 CE Controlled...
Страница 204: ...204 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary 23 AT91FR40162S Errata There is no known errata for the AT91FR40162S...