HCS08 datasheet(360/374 Pages) NXP

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Appendix A Electrical Characteristics

MC9S08JM60 Series Data Sheet, Rev. 5

360

Freescale Semiconductor

A.10 External Oscillator (XOSC) Characteristics

Table A-11. Oscillator Electrical Specifications (Temperature Range = –40 to 85

°C Ambient)

Num C

Rating

Symbol

Min

Typ1

1 Typical data was characterized at 3.0 V, 25

°C or is recommended value.

Max

Unit

Oscillator crystal or resonator (EREFS = 1, ERCLKEN = 1)

Low range (RANGE = 0)

High range (RANGE = 1) FEE or FBE mode 2

High range (RANGE = 1) PEE or PBE mode 3

High range (RANGE = 1, HGO = 1) BLPE mode

High range (RANGE = 1, HGO = 0) BLPE mode

2 When MCG is configured for FEE or FBE mode, input clock source must be divided using RDIV to within the range of 31.25 kHz

to 39.0625 kHz.

3 When MCG is configured for PEE or PBE mode, input clock source must be divided using RDIV to within the range of 1 MHz to

2 MHz.

flo

fhi-fll

fhi-pll

fhi-hgo

fhi-lp

—

38.4

kHz

MHz

— Load capacitors

C1, C2

See crystal or resonator

manufacturer’s recommendation.

3—

Feedback resistor

Low range (32 kHz to 38.4 kHz)

High range (1 MHz to 16 MHz)

4—

Series resistor

Low range, low gain (RANGE = 0, HGO = 0)

Low range, high gain (RANGE = 0, HGO = 1)

High range, low gain (RANGE = 1, HGO = 0)

High range, high gain (RANGE = 1, HGO = 1)

≥ 8 MHz

4 MHz

1 MHz

—

100

—

Crystal start-up time 4

Low range, low gain (RANGE = 0, HGO = 0)

Low range, high gain (RANGE = 0, HGO = 1)

High range, low gain (RANGE = 1, HGO = 0)5

High range, high gain (RANGE = 1, HGO = 1)5

4 This parameter is characterized and not tested on each device. Proper PC board layout procedures must be followed to achieve

specifications.

5 4 MHz crystal

CSTL-LP

CSTL-HGO

CSTH-LP

CSTH-HGO

—

200

400

—

Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)

FEE or FBE mode 2

PEE or PBE mode 3

BLPE mode

fextal

0.03125

—

MHz

MCU

EXTAL

XTAL

Crystal or Resonator

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