FWIXP420ABD Intel, FWIXP420ABD Datasheet - Page 86
FWIXP420ABD
Manufacturer Part Number
FWIXP420ABD
Description
Manufacturer
Intel
Datasheet
1.FWIXP420ABD.pdf
(128 pages)
Specifications of FWIXP420ABD
Core Operating Frequency
533MHz
Package Type
BGA
Pin Count
492
Mounting
Surface Mount
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Lead Free Status / Rohs Status
Not Compliant
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Table 40.
5.5
5.5.1
5.5.1.1
Table 41.
Table 42. Processors’ Clock Timings Spread Spectrum Parameters
Intel
Datasheet
86
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
RESET_IN_N Parameters @ 3.3V
AC Specifications
Clock Signal Timings
Processor Clock Timings
Devices’ Clock Timings
Notes:
1.
2.
3.
Frequency deviation from
33.33 MHz as a percentage
Modulation Frequency
Notes:
1.
Symbol
T
Symbol
FREQUENCY
FREQUENCY
V
V
IH
T
IL
V
C
V
Spread-Spectrum
DC
IH
IL
IN
This value is an oscillator input. Use as an oscillator input, tie to the crystal input pin and leave the
crystal output pin disconnected.
This parameter applies when driving the clock input with an oscillator.
Where the IXP42X product line or IXC1100 control plane processor is configured with an input
reference-clock, the slew rate should never be faster than 2.5 V/nS to ensure proper PLL operation.
To help ensure proper PLL operation at the slower slew rate, the VIH and VIL voltage levels need to be
within the specified range at an input clock frequency of 33.33 MHz.
It is important to note that when using spread spectrum clocking, other clocks in the system will
change frequency over a specific range. This change in other clocks can present some system level
limitations. Refer to the application note titled Spread Spectrum Clocking to Reduce EMI Application
Note, when designing a product that utilizes spread spectrum clocking.
Conditions
Input-high voltage
Input-low voltage
Input-high voltage
Input-low voltage
Clock frequency for IXP42X product line
and IXC1100 control plane processors
oscillator.
Clock tolerance over -40º C to 85º C.
Pin capacitance of IXP42X product line and
IXC1100 control plane processors
Duty cycle
Parameter
Intel
®
IXP42X product line and IXC1100 control plane processors—Datasheet
Parameter
-2.0%
Min
(Oscillator Reference)
Conditions
+0.0%
50 KHz
Max
’
inputs.
Characterized and guaranteed by design, but not tested.
Do not over-clock the PLL input. The A.C. timings will
not be guaranteed if the device exceeds 33.33 MHz.
Characterized and guaranteed by design, but not tested
Min.
2.0
Min.
2.0
-50
35
Typ.
Nom.
33.33
50
Document Number:
5
Notes
Max.
0.8
Max.
0.8
50
65
Units
V
V
Units
ppm
MHz
pF
252479-007US
%
V
V
June 2007
Notes
Notes
1,
2
3
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