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Power Ratings and Requirements
2.1
Note: Under all operating conditions, the 3.3 V – 1.35/1.3/1.2 V and 3.3 V – 2.5 V supply voltage
Table 4.
Table 5.
Hardware Design Guide
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The following sections describe power ratings and requirements for the Intel
IXP2850 Network Processors.
Power Ratings
Operation beyond the functional operating temperature range (see
and extended exposure beyond this range may affect reliability.
functional operating voltage ranges;
difference (V
) must not be exceeded; otherwise, permanent damage to the device may result.
DELTA
Also, the Core/PLL supply voltage must never be less than 1.1 V (see
Absolute Maximum/Minimum Ratings Table
Parameter
Junction Temp Tj (Commercial)
Junction Temp Tj (Extended)
Storage Temperature Range
Supply Voltage Difference V
DELTA
V
(1.35/1.3 V) Minimum
CORE
Operating Voltage
V
(1.2 V) Minimum Operating
CORE
Voltage
Maximum power-up time
Functional Operating Temperature Range
Parameter
Commercial temperature operating
range
Extended temperature operating range
Maximum Junction Temperature
(Extended)
Maximum Junction Temperature
(Commercial)
IXP28XX Network Processor
Power Ratings and Requirements
Table 7
Table 9
through
Table 11
provide example power values.
Minimum
Maximum
—
120° C
—
120° C
-55° C
125° C
• 3.3 V to 2.5 V rail difference
—
2.7 V
• 3.3 V to 1.35/1.3/1.2 V rail
1.1 V
—
1.1 V
—
It is expected that all supplies will be up
—
700 ms
and stable within 700 milliseconds.
Minimum
Maximum
Refer to the Intel
0° C
70° C
Processor Thermal/Mechanical
Design Guideline Application Note.
Refer to the Intel
-40° C
85° C
Processor Thermal/Mechanical
Design Guideline Application Note.
Refer to the Intel
—
120° C
Processor Thermal/Mechanical
Design Guideline Application Note.
Refer to the Intel
—
120° C
Processor Thermal/Mechanical
Design Guideline Application Note.
2
®
IXP2800 and Intel
Table
5) is not recommended
and
Table 8
list the
Table
4).
Comment
difference
Comment
®
IXP2800 Network
®
IXP2800 Network
®
IXP2800 Network
®
IXP2800 Network
®
17
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