
Electrical characteristics
MPC5604B/C Microcontroller Data Sheet, Rev. 8
Freescale Semiconductor
69
4.15
FMPLL electrical characteristics
The device provides a frequency-modulated phase-locked loop (FMPLL) module to generate a fast system clock from the main
oscillator driver.
Table 35. Slow external crystal oscillator (32 kHz) electrical characteristics
Symbol
C
Parameter
Conditions1
1 V
DD = 3.3 V ± 10% / 5.0 V ± 10%, TA = 40 to 125 °C, unless otherwise specified
Value
Unit
Min
Typ
Max
fSXOSC
SR — Slow external crystal oscillator
frequency
—
32
32.768
40
kHz
VSXOSC
CC T Oscillation amplitude
—
2.1
—
V
ISXOSCBIAS CC T Oscillation bias current
—
2.5
—
A
ISXOSC
CC T Slow external crystal oscillator
consumption
——
—
8
A
TSXOSCSU CC T Slow external crystal oscillator
start-up time
——
—
22
2 Start-up time has been measured with EPSON TOYOCOM MC306 crystal. Variation may be seen with other crystal
s
Table 36. FMPLL electrical characteristics
Symbol
C
Parameter
Conditions1
1 V
DD = 3.3 V ± 10% / 5.0 V ± 10%, TA = 40 to 125 °C, unless otherwise specified.
Value
Unit
Min
Typ
Max
fPLLIN
SR — FMPLL reference clock2
2 PLLIN clock retrieved directly from FXOSC clock. Input characteristics are granted when oscillator is used in
functional mode. When bypass mode is used, oscillator input clock should verify fPLLIN and PLLIN.
—4
—
64
MHz
PLLIN
SR — FMPLL reference clock duty
cycle2
—40
—
60
%
fPLLOUT CC D FMPLL output clock frequency
—
16
—
64
MHz
fVCO
3
3 Frequency modulation is considered ± 4%
CC P VCO frequency without
frequency modulation
—
256
—
512
MHz
C VCO frequency with frequency
modulation
—
245
—
533
fCPU
SR — System clock frequency
—
64
MHz
fFREE
CC P Free-running frequency
—
20
—
150
MHz
tLOCK
CC P FMPLL lock time
Stable oscillator (fPLLIN = 16 MHz)
40
100
s
t
LTJIT
CC — FMPLL long term jitter
fPLLIN = 16 MHz (resonator),
fPLLCLK @ 64 MHz, 4000 cycles
—
10
ns
IPLL
CC C FMPLL consumption
TA = 25 °C
—
4
mA