Datasheet

Table 20. Main oscillator electrical characteristics (continued)
Symbol Parameter Mode Conditions Min Typ Max Unit
V
XOSCHS
Oscillation
Amplitude
LCP
1, 2
4 MHz 1.0 V
PP
8 MHz 1.0
16 MHz 1.0
40 MHz 0.8
T
XOSCHSSU
Startup time FSP/LCP
3
4-40 MHz 1 ms
Supply current FSP 8 MHz 2.2 mA
16 MHz 2.2
40 MHz 3.2
LCP 8 MHz 141 uA
16 MHz 252
40 MHz 518
V
IH
Input High
level CMOS
Schmitt trigger
EXT Wave Oscillator
supply=3.3
1.25 1.45 V
V
IL
Input low level
CMOS
Schmitt trigger
EXT Wave Oscillator
supply=3.3
1.95 V
1. Values are very dependent on crystal or resonator used and parasitic capacitance observed in the board.
2. Typ value for oscillator supply 3.3 V@27 °C
3. Values are very dependent on crystal or resonator used and parasitic capacitance observed in the board
4.2.2 32 kHz Oscillator electrical specifications
Table 21. 32 kHz oscillator electrical specifications
Symbol Parameter Condition Min Typ Max Unit
f
osc_lo
Oscillator crystal
or resonator
frequency
32 40 KHz
t
cst
Crystal Start-up
Time
1, 2
2 s
1. This parameter is characterized before qualification rather than 100% tested.
2. Proper PC board layout procedures must be followed to achieve specifications.
4.2.3 16 MHz RC Oscillator electrical specifications
Table 22. 16 MHz RC Oscillator electrical specifications
Symbol Parameter Conditions Value Unit
Min Typ Max
F
Target
IRC target frequency — — 16 — MHz
Table continues on the next page...
Clocks and PLL interfaces modules
MPC5748G Microcontroller Datasheet Data Sheet, Rev. 2, 05/2014.
28
Preliminary
Freescale Semiconductor, Inc.