40.7 I/O Electrical Specifications

Table 40-9. I/O Pin AC/DC Electrical Specifications⁽⁸⁾
AC - DC CHARACTERISTICS			Standard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated) Operating temperature : -40°C ≤ TA ≤ +125°C for Extended Temp
Param. No.	Symbol	Characteristics	Min.	Typ.	Max.	Units	Conditions
DI_25	TRISE	I/O pin Rise Time (Standard pins, Low Drv Strength, DRVSTR = 0)⁽⁶⁾	—	—	15	ns	VDDIO(min), C_LOAD = 20 pF(max)⁽⁷⁾
		I/O pin Rise Time (Standard pins, High Drv Strength, DRVSTR = 1)⁽⁶⁾	—	—	8	ns
		I/O pin Rise Time (High- Sink pins, Low Drv Strength, DRVSTR = 0)⁽⁵⁾	—	—	12	ns
		I/O pin Rise Time (High- Sink pins, High Drv Strength, DRVSTR = 1)⁽⁵⁾	—	—	11	ns
DI_27	TFALL	I/O pin Fall Time (Standard pins, Low Drv Strength, DRVSTR = 0)⁽⁶⁾	—	—	15	ns
		I/O pin Fall Time (Standard pins, High Drv Strength, DRVSTR = 1) ⁽⁶⁾	—	—	7	ns
		I/O pin Rise Time (High- Sink pins, Low Drv Strength, DRVSTR = 0)⁽⁵⁾	—	—	11	ns
		I/O pin Rise Time (High- Sink pins, High Drv Strength, DRVSTR = 1)⁽⁵⁾	—	—	10	ns
Note: VIL source < (GND - 0.6). Characterized but not tested. 5.5V < VIH source ≤ 6.1V If the sum of all injection currents are > \| ∑IICT \| it can affect the ADC results by approximately 4 to 6 counts (i.e., VIH Source > (VDDIO + 0.6) or VIL source < (GND - 0..6)). Any number and the combination of I/O pins not excluded under IICL or IICH conditions are permitted provided the ‘absolute instantaneous’ sum of the input injection currents from all pins do not exceed the specified ∑IICT limit. To limit the injection current the user must insert a resistor in series RSERIES (i.e., RS) between input source voltage and device pin. The resistor value is calculated according to: For negative Input voltages less than (GND-0.6): RS ≥ absolute value of \| ((VIL source - (GND - 0.6)) / IICL) \| For positive input voltages greater than (VDDIO +0.6): RS ≥ ((VIH source - (VDDIO +0.6))/ IICH) For Vpin voltages >VDDIO +0.6 and <GND-0.6 then RS = the larger of the values calculated above The following pins are High-Sink pins and have different properties than standard pins: PA10, PA11, PB10, PB11. The following pins are TWIHS pins and have the same properties as standard pins when not used as SERCOM I²C pins: PA08, PA09, PA12, PA13, PA16, PA17, PC16, PC17, PA22, PA23. When used in SERCOM I²C mode, refer to I2CM_5/7 and I2CS_5/7 parameters. Rising and falling measurements given between 10% and 90%. The RESET pin has the same properties as standard GPIOs.