MPC5643L datasheet(91/136 Pages) FREESCALE

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Electrical characteristics

MPC5643L Microcontroller Data Sheet, Rev. 8.1

Freescale Semiconductor

Figure 6. Main oscillator electrical characteristics

Table 22. Main oscillator electrical characteristics

Symbol

Parameter

Conditions1

1 V

DD =3.3 V±10%, TJ = –40 to +150 °C, unless otherwise specified.

Value

Unit

Min

Typ

Max

fXOSCHS

SR Oscillator frequency

—

4.0

—

40.0

MHz

gmXOSCHS

P Oscillator

transconductance

VDD = 3.3 V ±10%

4.5

—

13.25

mA/V

VXOSCHS

D Oscillation amplitude

fOSC = 4, 8, 10, 12, 16 MHz

1.3

—

fOSC =40MHz

1.1

—

VXOSCHSOP D Oscillation operating

point

—

0.82

—

IXOSCHS

D Oscillator consumption

—

3.5

TXOSCHSSU

T Oscillator start-up time

fOSC = 4, 8, 10, 12 MHz

2 The recommended configuration for maximizing the oscillator margin are:

XOSC_MARGIN = 0 for 4 MHz quartz

XOSC_MARGIN = 1 for 8/16/40 MHz quartz

——

fOSC =16, 40 MHz

——

VIH

SR Input high level CMOS

Schmitt Trigger

Oscillator bypass mode

0.65 × VDD

—VDD +0.4

VIL

SR Input low level CMOS

Schmitt Trigger

Oscillator bypass mode

–0.4

—

0.35 × VDD

VXOSCHSOP

TXOSCHSSU

VXTAL

VXOSCHS

valid internal clock

90%

10%

1/fXOSCHS

MTRANS

MPC5643L Datasheet(PDF) 91 Page - Freescale Semiconductor, Inc

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