Lpc Trace Length Guidelines; Table 31: Lpc Trace Length Guidelines; Figure 27: Topology For Lpc - Advantech SOM-5992 Design Manual

2.10.3 LPC Trace Length Guidelines

Figure 27 : Topology for LPC
Table 31 : LPC Trace Length Guidelines
Parameter
Signal Group
Single End
Nominal Trace Space within LPC
Signal Group
Spacing to Other Signal Group
LA
LB
Max length of LA+LB
Length matching between single
ended signals
Length matching between clock
signals
Reference Plane
Via Usage
Notes:
Main Route Guidelines
LPC
50~55Ω ±10%
Min. 15mils
Min. 15mils
Please see the SOM-5992 Layout Checklist
Carrier Board Length
23"
Max. 250mils
Max. 250mils
GND referencing preferred.
Try to minimize number of vias
９１
Notes