Appendix C Recommended PCB Layout
MC9S12XDP512 Data Sheet, Rev. 2.11
970 Freescale Semiconductor
Table C-1. Recommended Decoupling Capacitor Choice
Component Purpose Type Value
C1 VDD1 filter capacitor Ceramic 220 nF
C2 VDD2 filter capacitor
(not available on the 80-pin QFP
packaging option)
Ceramic X7R 220 nF
C3 VDDA filter capacitor Ceramic X7R >=100 nF
C4 VDDR filter capacitor X7R/tantalum >=100 nF
C5 VDDPLL filter capacitor Ceramic X7R 220 nF
C6 VDDX filter capacitor X7R/tantalum >=100 nF
C7 OSC load capacitor Comes from crystal manufacturer
C8 OSC load capacitor
C9 PLL loop filter capacitor See PLL specification chapter
C10 PLL loop filter capacitor
C11 VDDX filter capacitor X7R/tantalum >=100 nF
C12 VDDX filter capacitor X7R/tantalum >=100 nF
R1 PLL loop filter resistor See PLL specification chapter
Q1 Quartz — —