IXP2400 Intel, IXP2400 Datasheet - Page 100

• Manufacturer Part Number: IXP2400
• Manufacturer: Intel

Specifications of IXP2400

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

Intel
4.1.1
100
Table 37. Maximum Power Consumption by Power Supply
Figure 12. PLL Power Supply Connection
®
IXP2400 Network Processor
1. Values presented include core and I/O.
2. 400-MHz (B Stepping) IXP2400 devices should use a 1.1V core power supply; 600-MHz IXP2400
3. QDR and DDR I/O values include power consumption from termination.
Reducing Power Consumption
The following are recommendations to help reduce power consumption:
•
•
•
VCCA1.3
VCC1.5
VCC2.5
VCC1.3
VCC3.3
Supply
devices can only use a 1.3V core power supply.
Totals
Name
Don’t connect unused QDR channels (remove any termination for the channel; do not connect
anything to it).
If only one or two SRAM chips suffice for an application and the board design allows the
IXP2400 and the SRAM chips to be close to each other, termination can be removed or
termination resistance can be increased. For instance, on boards that demonstrate good signal
integrity and have the IXP2400 and SRAM chips placed within two inches of each other, there
may be no need for termination.
Use only as much of the 32-bit MSF interface as needed; this minimizes the power
consumption at the unused sub-channels.
3
3
400 MHz
(1.3V)
17.71
8.92
2.67
3.15
2.97
A Stepping
VCCA 1.3
600 MHz
(1.3V)
13.62
22.41
2.67
3.15
2.97
4.7 µH
22 µF
1.5 inches
400 MHz
(1.1V)
11.52
4.46
2.34
1.75
2.97
B Stepping
2
VCCA 1.3
VSSA
600 MHz
(1.3V)
16.05
PLL
1
8.59
2.49
2.00
2.97
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Datasheet
B0549-01