RPIXP2800BC Intel, RPIXP2800BC Datasheet - Page 24
RPIXP2800BC
Manufacturer Part Number
RPIXP2800BC
Description
Manufacturer
Intel
Datasheet
1.RPIXP2800BC.pdf
(154 pages)
Specifications of RPIXP2800BC
Operating Supply Voltage (typ)
1.3/1.5/2.5/3.3V
Operating Supply Voltage (max)
1.575/2.7/3.465V
Operating Supply Voltage (min)
1.235/2.3/3.135V
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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IXP28XX Network Processor
Power Ratings and Requirements
2.2
2.2.1
2.2.2
24
Caution: The IXP28XX network processors each have a prescribed supply voltage bring-up sequence that
Note: The 1.8 V and 1.5 V supplies can come up in any order before or after the 2.5 V, 1.3 V, and 3.3 V
Note: No 3.3 V devices should drive any of the IXP2800/IXP2850 pins until its 3.3 V supply is up and
Note: The 1.8 V and 1.5 V supplies can come up in any order before or after the 2.5 V, 1.2 V, and 3.3 V
Note: No 3.3 V devices should drive any of the IXP2800/IXP2850 pins until its 3.3 V supply is up and
Supply Voltage Power-up Sequence
must be followed, or permanent damage to the device may result. This section provides the bring-
up sequence for 1.4 /1.0 GHz devices
Sequence for 1.4 / 1.0 GHz Devices
The sequence for the 1.4 / 1.0 GHz B-stepping devices is as follows:
It is expected that all supplies will be up and stable within the maximum power-up time
requirement of 700 ms. Additionally, the maximum time from when the 2.5 V supply is up and
stable to when the 1.3 V supply begins to ramp should not exceed 200 ms.
supplies.
stable.
Sequence for 650 MHz Devices
The sequence for the 650 MHz B-stepping devices is as follows:
It is expected that all supplies will be up and stable within the maximum power-up time
requirement of 700 ms. Additionally, the maximum time from when the 2.5 V supply is up and
stable to when the 1.2 V supply begins to ramp should not exceed 200 ms.
supplies.
stable.
1. The 2.5 V supply must come up before the 1.3 V supply.
2. The 1.3 V supply must come up after the 2.5 V supply and must not start to ramp until the
3. The 3.3 V supply must come up only after the 2.5 V and 1.3 V supplies are up and stable.
1. The 2.5 V supply must come up before the 1.2 V supply.
2. The 1.2 V supply must come up after the 2.5 V supply and must not start to ramp until the
3. The 3.3 V supply should begin to ramp after the 2.5 V and 1.2 V supplies are up and stable.
2.5-V supply has exceeded 1 V.
2.5 V supply has exceeded 1 V.
It is acceptable to ramp the 1.2 V and 3.3 V supplies together as long as the two supplies rise
linearly together and do not deviate by more than 10% of the nominal ramp rate until both
supplies reach their respective final voltage levels.
(Section
2.2.1) and 650 MHz devices
Hardware Design Guide
(Section
2.2.2).
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