ICS9UMS9633BI
Advance Information
ULTRA MOBILE PC CLOCK FOR INDUSTRIAL TEMPERATURE RANGE
Electrical Characteristics - SMBus Interface
PARAMETER
SYMBOL
CONDITIONS
MIN
2.7
MAX
3.3
UNITS
Notes
SMBus Voltage
VDD
V
V
1
1
Low-level Output Voltage
Current sinking at
VOLSMB
@ IPULLUP
0.4
IPULLUP
SMB Data Pin
4
mA
1
VOLSMB = 0.4 V
SCLK/SDATA
Clock/Data Rise Time
SCLK/SDATA
(Max VIL - 0.15) to
(Min VIH + 0.15)
(Min VIH + 0.15) to
(Max VIL - 0.15)
TRI2C
TFI2C
1000
300
ns
ns
1
1
1
Clock/Data Fall Time
Maximum SMBus Operating
Frequency
FSMBUS
Block Mode
100
kHz
Notes on Electrical Characteristics:
1Guaranteed by design and characterization, not 100% tested in production.
2 Slew rate measured through Vswing centered around differential zero
3 Vxabs is defined as the voltage where CLK = CLK#
4 Only applies to the differential rising edge (CLK rising and CLK# falling)
5 Defined as the total variation of all crossing voltages of CLK rising and CLK# falling. Matching applies to rising edge rate of CLK and
falling edge of CLK#. It is measured using a +/-75mV window centered on the average cross point where CLK meets CLK#.
6 All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is at 14.31818MHz
7 Operation under these conditions is neither implied, nor guaranteed.
Clock Periods Differential Outputs with Spread Spectrum Enabled
Measurement Window
1 Clock
Lg-
1us
0.1s
0.1s
0.1s
1us
1 Clock
Lg+
Symbol
-SSC
-ppm error
0ppm
+ ppm error
+SSC
Absolute Short-term Long-Term
Period Average Average
Long-Term Short-term
Period
Period
Average
Average
Definition
Minimum Minimum Minimum
Absolute Absolute Absolute
Nominal
Maximum
Maximum Maximum
Period
9.87400
9.91400
Period
9.99900
9.99900
Period
9.99900
9.99900
Units
ns
Notes
1,2
10.00000
10.00000
10.00100
10.00100
10.05130
10.05130
10.17630
10.13630
SRC 100
ns
1,2
CPU 100
7.41425
5.91440
7.49925
5.99940
7.49925
5.99940
7.50000
6.00000
7.50075
6.00060
7.53845
6.03076
7.62345
6.11576
ns
ns
1,2
1,2
CPU 133
CPU 166
Clock Periods Differential Outputs with Spread Spectrum Disabled
Measurement Window
1 Clock
Lg-
1us
0.1s
0.1s
0.1s
1us
1 Clock
Lg+
Symbol
-SSC
-ppm error
0ppm
+ ppm error
+SSC
Absolute Short-term Long-Term
Period Average Average
Long-Term Short-term
Period
Period
Average
Average
Definition
Minimum Minimum Minimum
Absolute Absolute Absolute
Nominal
Maximum
Maximum Maximum
Period
9.87400
9.91400
7.41425
5.91440
10.16560
Period
Period
9.99900
9.99900
7.49925
5.99940
10.41560
Units
ns
Notes
1,2
10.00000
10.00000
7.50000
6.00000
10.41670
10.00100
10.00100
7.50075
6.00060
10.41770
10.17630
10.13630
7.62345
6.11576
10.66770
SRC 100
ns
1,2
CPU 100
CPU 133
CPU 166
DOT 96
ns
1,2
ns
1,2
ns
1,2
1Guaranteed by design and characterization, not 100% tested in production.
2 All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT is at 14.31818MHz
IDTTM/ICSTM Ultra Mobile PC Clock for Industrial Temperature Range
1451—01/20/09
10
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
