Datasheet

Single input comparator
(EXTAL WAVE)
Mux
ref_clk
Differential input comparator
(HG/LP mode)
Peak detector
LP mode
Driver
(HG/LP mode)
Pull down resistor (OFF)
ESD PAD
280 ohms
ESD PAD
40 ohms
EXTAL pin
XTAL pin
Series resistor for current
limitation
Crystal or resonator
C1
C2
1M ohms Feedback Resistor
Figure 8. Oscillator connections scheme
Table 15. External System Oscillator electrical specifications
Symbol Description Min. Typ. Max. Unit Notes
g
mXOSC
Crystal oscillator transconductance
4-8 MHz 2.2 — 13.7 mA/V
8-40 MHz 16 — 47 mA/V
V
IL
Input low voltage — EXTAL pin in external clock mode V
SS
— 0.35 * V
DD
V
V
IH
Input high voltage — EXTAL pin in external clock
mode
0.7 * V
DD
— V
DD
V
C
1
EXTAL load capacitance — — — 1
C
2
XTAL load capacitance — — — 1
R
F
Feedback resistor 2
Low-gain mode (HGO=0) — — — MΩ
Table continues on the next page...
Clock interface modules
S32K1xx Data Sheet, Rev. 4, 06/2017
24
Preliminary
NXP Semiconductors