31.13 XOSC Electrical Specifications
AC CHARACTERISTICS | Standard Operating Conditions: VDDIO = AVDD = VDD 1.62V
to 3.63V (unless otherwise stated) Operating temperature: -40°C ≤ TA ≤ +85°C for Industrial | ||||||
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Param. No. | Symbol | Characteristics | Min. | Typ. | Max. | Units | Conditions |
XOSC_1 | FOSC_XOSC | XOSC Crystal Frequency | 0.4 | — | 32 | MHz | XOSC.XTALEN = 1
XIN, XOUT Primary Oscillator |
XOSC_1A | TOSC | TOSC = 1/FOSC_XOSC | 31.25 | — | 2500 | ns | See parameter XOSC1 for FOSC_XOSC value |
XOSC_2 | XOSC_ST(1) | XOSC Crystal Stabilisation Time | — | 15600 | 51000(3) | TOSC | Crystal
stabilization time only, not Oscillator Ready. CL = 20 pF, XOSC.GAIN = 0, 1, 2, 3, 4 |
XOSC_3 | CXIN | XOSC XIN parasitic pin capacitance | — | 6.1 | — | pF | — |
XOSC_5 | CXOUT | XOSC XOUT parasitic pin capacitance | — | 3.3 | — | pF | — |
XOSC_11 | CLOAD(2) | XOSC Crystal FOSC = 0.455 MHz | — | — | 100 | pF | — |
XOSC_13 | XOSC Crystal FOSC = 2 MHz | — | — | 20 | pF | — | |
XOSC_15 | XOSC Crystal FOSC = 4 MHz | — | — | 20 | pF | — | |
XOSC_17 | XOSC Crystal FOSC = 8 MHz | — | — | 20 | pF | — | |
XOSC_19 | XOSC Crystal FOSC = 16 MHz | — | — | 20 | pF | — | |
XOSC_20 | XOSC Crystal FOSC = 32 MHz | — | — | 18 | pF | — | |
XOSC_21 | ESR | XOSC Crystal FOSC = 0.455 MHz | — | — | 5.6K | Ω | CL = 100 pF, XOSC.GAIN = 0 |
XOSC_23 | XOSC Crystal FOSC = 2 MHz | — | — | 330 | Ω | CL = 20 pF, XOSC.GAIN = 0 | |
XOSC_25 | XOSC Crystal FOSC = 4 MHz | — | — | 240 | Ω | CL = 20 pF, XOSC.GAIN = 1 | |
XOSC_27 | XOSC Crystal FOSC = 8 MHz | — | — | 105 | Ω | CL = 20 pF, XOSC.GAIN = 2 | |
XOSC_29 | XOSC Crystal FOSC = 16 MHz | — | — | 60 | Ω | CL = 20 pF, XOSC.GAIN = 3 | |
XOSC_30 | XOSC Crystal FOSC = 32 MHz | — | — | 55 | Ω | CL = 18 pF, XOSC.GAIN = 4 | |
XOSC_35 | FOSC_XCLK | Ext Clock Oscillator Input Freq (the XIN pin) | 0.4 | — | 32 | MHz | XOSC.XTALEN = 0 |
XOSC_37 | XCLK_DC | Ext Clock Oscillator (the XIN pin) Duty Cycle | 40 | 50 | 60 | % | XOSC.XTALEN = 0 |
Note:
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