Datasheet
Table 16. Oscillator DC electrical specifications (continued)
Symbol Description Min. Typ. Max. Unit Notes
R
F
Feedback resistor — low-frequency, low-power
mode (HGO=0)
— — — MΩ 2, 4
Feedback resistor — low-frequency, high-gain
mode (HGO=1)
— 10 — MΩ
Feedback resistor — high-frequency, low-power
mode (HGO=0)
— — — MΩ
Feedback resistor — high-frequency, high-gain
mode (HGO=1)
— 1 — MΩ
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
,C
y
can be provided by using either the integrated capacitors or by using 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 devices.
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
Table continues on the next page...
Peripheral operating requirements and behaviors
K60 Sub-Family Data Sheet Data Sheet, Rev. 7, 02/2013.
Freescale Semiconductor, Inc. 31