48.5 I/O Pin Characteristics

Two different pin types with two different speeds are Normal and High-Sink pins⁽²⁾. The Drive Strength bit is located in the Pin Configuration register PORT (PORT.PINCFG.DRVSTR).

The pins with I²C alternative mode available are compliant with I²C specifications. All I²C pins support Standard (Sm), Fast (Fm), Fast plus (Fm+) and High-Speed (HS) modes. The available I²C pins are listed in the I/O Multiplexing section.

The RESET_N pin has the same properties as standard GPIOs.

Table 48-4. I/O Pins Dynamic Characteristics ⁽¹⁾
Symbol	Parameter	Conditions	Normal pins	High-Sink pins	Normal pins	High-Sink pins	Units
Symbol	Parameter	Conditions	DRVSTR = 0		DRVSTR = 1		Units
t_RISE	Maximum rise time	VDD = 5.0V, load = 20 pF	15	12	8	11	ns
t_FALL	Maximum fall time	VDD = 5.0V, load = 20 pF	15	11	7	10	ns

These values are based on simulation and not covered by test limits in production or characterization.
The following pins are High-Sink pins and have different properties than normal pins: PA10, PA11, PB10, PB11.