Oscillators Pinout

The oscillators are not mapped to the I/O Pin Controller (PORT) functions and their multiplexing is controlled by the Oscillators Controller (OSCCTRL) and 32 kHz Oscillators Controller (OSC32KCTRL) registers.

Table 1. Oscillator Pinout
Oscillator	Supply	Signal	I/O pin
XOSC	VDDIO	XIN	PA14
XOSC	VDDIO	XOUT	PA15
XOSC32K	VDDANA	XIN32	PA00
XOSC32K	VDDANA	XOUT32	PA01

The transition time of the following pins must be greater than 50us in order to not affect the XOSC32 cycle to cycle jitter:

Table 2. XOSC32 Jitter Minimization
Package	Pin Name
TQFP32 / VQFN32 / VQFN24 / SSOP24	PA02, PA31
WLCSP32	PA30