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AMD SP5100 Databook
44409 Rev. 1.70 October 10
64
System Clock Specifications
48 MHz USB
Symbol
Parameter
Min
Max
Units
Note
-
Max Jitter
-
130
ps
-
-
Duty Cycle
45
55
%
-
Notes:
1
Clock frequency tolerance is +/- 100 ppm
2
VIL= 0.4 V ; VILmax = 0.6 V and VILmin = 0 V
VIH = 2.4 V; VIHmax=VDDR and VIHmin = 2.0 V
Table 9-5: RTC X1 Clock AC Specifications
RTC X1 Clock
Symbol
Parameter
Min
Max
Units
Note
T61
Clock Period
Typical at 32.7
kHz
1
T62
Clock/Data rise time
0.5
5
μ
s
2
T63
Clock/Data fall time
0.5
5
μ
s
T64
Clock high period
13
17
μ
s
T65
Clock low period
13
17
μ
s
-
Duty Cycle
45
55
%
-
-
Frequency Tolerance
-20
20
PPM
-
Notes
1
Min/Max specifications depend on accuracy of the crystal used.
2
VIL= 0.25 V ; VILmax = 250 mV and VILmin = 0 V
VIH = 0.75 V; VIHmax=1V and VIHmin = 750 mV
Table 9-6: LPC Clock AC Specifications
LPC Clock
Symbol
Parameter
Min
Max
Units
Note
T61
Clock Period
30
33.3
ns
-
T62
Clock/Data rise time
-
3
ns
-
T63
Clock/Data fall time
-
3
ns
-
T64
Clock high period
12
-
ns
-
T65
Clock low period
12
-
ns
-
Table 9-7: PCI Clock AC Specifications
PCI Clock (6 clocks, PCICLK[5:0])
Symbol
Parameter
Min
Max
Units
Note
T61
Clock Period
30
33.3
ns
-
T62
Clock/Data rise time
-
3.0
ns
-
T63
Clock/Data fall time
-
3.0
ns
-
T64
Clock high period
12
-
ns
-
T65
Clock low period
12
-
ns
-