Device User Guide — 9S12C128DGV1/D V01.05

Table 8-1 Recommended External Component Values

Component

Purpose

Type

Value

 

 

 

 

C1

VDD1 filter capapcitor

ceramic X7R

220nF, 470nF1

C2

VDD2 filter capacitor (80 QFP only)

ceramic X7R

220nF

 

 

 

 

C3

VDDA filter capacitor

ceramic X7R

100nF

 

 

 

 

C4

VDDR filter capacitor

X7R/tantalum

>=100nF

 

 

 

 

C5

VDDPLL filter capacitor

ceramic X7R

100nF

 

 

 

 

C6

VDDX filter capacitor

X7R/tantalum

>=100nF

 

 

 

 

C7

OSC load capacitor

See PLL specification chapter

 

 

C8

OSC load capacitor

 

 

 

 

 

 

C9

PLL loop filter capacitor

See PLL specification chapter

 

 

C10

PLL loop filter capacitor

 

 

 

 

 

C11

DC cutoff capacitor

Colpitts mode only, if recommended by

quartz manufacturer

 

 

 

 

 

R1

PLL loop filter resistor

See PLL Specification chapter

 

 

 

 

R2 / RB

PLL loop filter resistor

Pierce mode only

 

 

R3 / RS

PLL loop filter resistor

 

 

 

 

 

 

Q1

Quartz

 

 

 

 

 

 

NOTES:

 

 

 

1.In 48LQFP and 52LQFP package versions, VDD2 is not available. Thus 470nF must be connected to VDD1.

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Motorola MC9S12C-Family, MC9S12GC-Family warranty Recommended External Component Values, Component Purpose Type Value