Datasheet
Table 16. Oscillator DC electrical specifications (continued)
Symbol Description Min. Typ. Max. Unit Notes
R
S
Series resistor — low-frequency, low-power
mode (HGO=0)
— — — kΩ
Series resistor — low-frequency, high-gain mode
(HGO=1)
— 200 — kΩ
Series resistor — high-frequency, low-power
mode (HGO=0)
— — — kΩ
Series resistor — high-frequency, high-gain
mode (HGO=1)
—
0
—
kΩ
V
pp
5
Peak-to-peak amplitude of oscillation (oscillator
mode) — low-frequency, low-power mode
(HGO=0)
— 0.6 — V
Peak-to-peak amplitude of oscillation (oscillator
mode) — low-frequency, high-gain mode
(HGO=1)
— V
DD
— V
Peak-to-peak amplitude of oscillation (oscillator
mode) — high-frequency, low-power mode
(HGO=0)
— 0.6 — V
Peak-to-peak amplitude of oscillation (oscillator
mode) — high-frequency, high-gain mode
(HGO=1)
— V
DD
— V
1. V
DD
=3.3 V, Temperature =25 °C
2. See crystal or resonator manufacturer's recommendation
3. C
x
and C
y
can be provided by using either integrated capacitors or external components.
4. When low-power mode is selected, R
F
is integrated and must not be attached externally.
5. The EXTAL and XTAL pins should only be connected to required oscillator components and must not be connected to any
other device.
6.3.2.2 Oscillator frequency specifications
Table 17. Oscillator frequency specifications
Symbol Description Min. Typ. Max. Unit Notes
f
osc_lo
Oscillator crystal or resonator frequency — low-
frequency mode (MCG_C2[RANGE]=00)
32 — 40 kHz
f
osc_hi_1
Oscillator crystal or resonator frequency — high-
frequency mode (low range)
(MCG_C2[RANGE]=01)
3 — 8 MHz 1
f
osc_hi_2
Oscillator crystal or resonator frequency — high
frequency mode (high range)
(MCG_C2[RANGE]=1x)
8 — 32 MHz
f
ec_extal
Input clock frequency (external clock mode) — — 60 MHz 2, 3
t
dc_extal
Input clock duty cycle (external clock mode) 40 50 60 %
Table continues on the next page...
Peripheral operating requirements and behaviors
K70 Sub-Family Data Sheet, Rev. 5, 10/2013.
Freescale Semiconductor, Inc. 35