
CY28419
......................Document #: 38-07444 Rev. *D Page 12 of 15
CPU at 0.7V
TDC
CPUT and CPUC Duty Cycle
Measured at crossing point VOX
45
55
%
TPERIOD
100-MHz CPUT and CPUC Period Measured at crossing point VOX
9.9970
10.003
ns
TPERIOD
133-MHz CPUT and CPUC Period Measured at crossing point VOX
7.4978
7.5023
ns
TPERIOD
166-MHz CPUT and CPUC Period Measured at crossing point VOX
5.9982
6.0018
ns
TPERIOD
200-MHz CPUT and CPUC Period Measured at crossing point VOX
4.9985
5.0015
ns
TSKEW
Any CPU to CPU Clock Skew
Measured at crossing point VOX
–100
ps
TCCJ
CPU Cycle-to-Cycle Jitter
Measured at crossing point VOX
–125
ps
TR/TF
CPUT/CPUC Rise and Fall Times
Measured from VOL = 0.175 to VOH = 0.525V
175
700
ps
TRFM
Rise/Fall Matching
Determined as a fraction of 2*(TR–TF)/ (TR+TF)–
20
%
T
R
Rise Time Variation
–
125
ps
T
F
Fall Time Variation
–
125
ps
VHIGH
Voltage High
660
850
mv
VLOW
Voltage Low
–150
–
mv
VOX
Crossing Point voltage at 0.7V
Swing
250
550
mv
VOVS
Maximum Overshoot Voltage
–
VHIGH + 0.3
V
VUDS
Minimum Undershoot Voltage
–0.3
–
V
VRB
Ring Back Voltage
–
0.2
V
SRC
TDC
SRCT and SRCC Duty Cycle
Measured at crossing point VOX
45
55
%
TPERIOD
100-MHz SRCT and SRCC Period Measured at crossing point VOX
9.9970
10.003
ns
TPERIOD
200-MHz SRCT and SRCC Period Measured at crossing point VOX
4.9985
5.0015
ns
TCCJ
SRC Cycle-to-Cycle Jitter
Measured at crossing point VOX
–125
ps
LACC
SRCT/C Long-term Accuracy
Measured at crossing point VOX
–
300
ppm
TR / TF
SRCT/SRCT\C Rise and Fall Times Measured from VOL = 0.175 to VOH = 0.525V
175
700
ps
TRFM
Rise/Fall Matching
Determined as a fraction of 2*(TR–TF)/ (TR+TF)–
20
%
T
R
Rise Time Variation
–
125
ps
T
F
Fall Time Variation
–
125
ps
VHIGH
Voltage High
660
850
mv
VLOW
Voltage Low
–150
–
mv
VOX
Crossing Point Voltage at 0.7V
Swing
250
550
mV
VOVS
Maximum Overshoot Voltage
–
VHIGH+0.3
V
VUDS
Minimum Undershoot Voltage
–0.3
–
V
VRB
Ring Back Voltage
–
0.2
V
3V66
TDC
3V66 Duty Cycle
Measurement at 1.5V
45
55
%
TPERIOD
Spread Disabled 3V66 Period
Measurement at 1.5V
14.9955
15.0045
ns
TPERIOD
Spread Enabled 3V66 Period
Measurement at 1.5V
14.9955
15.0799
ns
THIGH
3V66 High Time
Measurement at 2.0V
4.9500
–
ns
TLOW
3V66 Low Time
Measurement at 0.8V
4.5500
–
ns
TR / TF
3V66 Rise and Fall Times
Measured between 0.8V and 2.0V
0.5
2.0
ns
TSKEW
Any 3V66 to Any 3V66 Clock Skew Measurement at 1.5V
–
250
ps
TCCJ
3V66 Cycle-to-Cycle Jitter
Measurement at 1.5V
–
250
ps
AC Electrical Specifications (continued)
Parameter
Description
Conditions
Min.
Max.
Unit