......................Document #: 38-07713 Rev. *B Page 12 of 16
AC Electrical Specifications
Parameter Description Condition Min. Max. Unit
Crystal
T
DC
XIN Duty Cycle The device will operate reliably with input
duty cycles up to 30/70 but the REF clock
duty cycle will not be within specification
47.5 52.5 %
T
PERIOD
XIN Period When XIN is driven from an external
clock source
69.841 71.0 ns
T
R
/ T
F
XIN Rise and Fall Times Measured between 0.3V
DD
and 0.7V
DD
–10.0ns
T
CCJ
XIN Cycle to Cycle Jitter As an average over 1-s duration – 500 ps
L
ACC
Long-term Accuracy Over 150 ms – 300 ppm
CPU at 0.7V
T
DC
CPUT and CPUC Duty Cycle Measured at crossing point V
OX
45 55 %
T
PERIOD
100-MHz CPUT and CPUC Period Measured at crossing point V
OX
9.997001 10.00300 ns
T
PERIOD
133-MHz CPUT and CPUC Period Measured at crossing point V
OX
7.497751 7.502251 ns
T
PERIOD
166-MHz CPUT and CPUC Period Measured at crossing point V
OX
5.998201 6.001801 ns
T
PERIOD
200-MHz CPUT and CPUC Period Measured at crossing point V
OX
4.998500 5.001500 ns
T
PERIOD
266-MHz CPUT and CPUC Period Measured at crossing point V
OX
3.748875 3.751125 ns
T
PERIOD
333-MHz CPUT and CPUC Period Measured at crossing point V
OX
2.999100 3.000900 ns
T
PERIOD
400-MHz CPUT and CPUC Period Measured at crossing point V
OX
2.499250 2.500750 ns
T
SKEW
CPU0 to CPU1 Measured at crossing point V
OX
–100ps
T
CCJ
CPUT/C Cycle to Cycle Jitter Measured at crossing point V
OX
–85ps
L
ACC
Long Term Accuracy Measured using frequency counter over
0.15seconds.
– 300 ppm
T
R
/ T
F
CPUT and CPUC Rise and Fall Times Measured from V
OL
= 0.175 to V
OH
= 0.525V 175 1100 ps
T
RFM
Rise/Fall Matching Determined as a fraction of
2 * (T
R
– T
F
)/(T
R
+ T
F
)
–20%
T
R
Rise Time Variation – 125 ps
T
F
Fall Time Variation – 125 ps
V
HIGH
Voltage High Math averages Figure 9 660 850 mV
V
LOW
Voltage Low Math averages Figure 9 –150 – mV
V
OX
Crossing Point Voltage at 0.7V Swing 250 550 mV
V
OVS
Maximum Overshoot Voltage – V
HIGH
+ 0.3 V
V
UDS
Minimum Undershoot Voltage –0.3 – V
V
RB
Ring Back Voltage See Figure 9. Measure SE – 0.2 V
SRC
T
DC
SRCT and SRCC Duty Cycle Measured at crossing point V
OX
45 55 %
T
PERIOD
100-MHz SRCT and SRCC Period Measured at crossing point V
OX
9.997001 10.00300 ns
T
SKEW
Any SRCT/C to SRCT/C Clock Skew Measured at crossing point V
OX
–250ps
T
CCJ
SRCT/C Cycle to Cycle Jitter Measured at crossing point V
OX
–125ps
L
ACC
SRCT/C Long Term Accuracy Measured at crossing point V
OX
– 300 ppm
T
R
/ T
F
SRCT and SRCC Rise and Fall Times Measured from V
OL
= 0.175 to V
OH
= 0.525V 175 1100 ps
T
RFM
Rise/Fall Matching Determined as a fraction of
2 * (T
R
– T
F
)/(T
R
+ T
F
)
–20%
T
R
Rise TimeVariation – 125 ps
T
F
Fall Time Variation – 125 ps
V
HIGH
Voltage High Math averages Figure 9 660 850 mV
