RPIXP2850BB Intel, RPIXP2850BB Datasheet - Page 75

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RPIXP2850BB

Manufacturer Part Number
RPIXP2850BB
Description
Manufacturer
Intel
Datasheet

Specifications of RPIXP2850BB

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
Table 27.
Figure 37.
Table 28.
Hardware Design Guide
QDR C, C#, CIN, and CIN# Signal Group Routing Guidelines (Sheet 2 of 2)
Figure 37
QDR C, C#, CIN, CIN# Signal Trace Width/Spacing Routing
Table 28
QDR C and CIN Clock Signal Trace Width/Spacing Routing Details
The trace lengths of the C-Clocks (C0, C0#, C1, and C1#) should be matched to each other to
within ±25 mils. Similarly, the trace lengths of the CIN-Clocks (CIN0, CIN0#, CIN1, and CIN1#)
should be matched to each other to within ±25 mils. However, the individual trace length of each
CIN-Clock must be controlled according to the following CIN-Clk/Q relationship formula:
Trace length Pkg
Trace length B
Maximum via count per signal
Length tuning method
Parameter
Value
T
signal
lists the QDR C and CIN clock signal trace width/spacing routing details.
T
T
illustrates the routing for QDR C, C#, CIN, and CIN# signal trace width/spacing.
d2
d1
Signal
Clock
QDR
C-
Signals
1
Other
+ A to SRAMs
Parameter
CIN/CIN#-Clk-trace-length (SRAM pin to IXP28XX C-IN pin)
Width (W)
[mils]
Trace
5
= Q-trace-length
Thickness
(Tsignal)
20 mil or larger
[mils]
Trace
0.5
Prepreg
POWER or GND Plane
POWER or GND Plane
(S) [mils]
Spacing
20 - 25
Trace
Roughly matched to B
Maximum = 11.0 inches.
Should be matched to Q trace length
Maximum = 11.0 inches
As small as possible.
Maximum = 6 vias
All C and C# signals should be length-matched among
each other to within ±25 mils
Thickness
K, C Clk
[mils]
(TD1)
Signal
D1
5.0
W
Thickness
Routing Guideline
IXP28XX Network Processor
[mils]
(Td2)
5.7
D2
S
Er(D1) Er(D2)
3.5
K, C Clk
Signal
W
3.8
QDR SRAM
D2
D1
between
Spacing
3994-01
groups
20 - 25
signal
[mils]
75

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