39.9 I/O Specifications

Table 39-11. 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 ≤ +85°C for Industrial
Param. No.	Symbol	Characteristics	Min.	Typ.	Max.	Units	Conditions
DI_1	VIL	Input Low- Voltage I/O Pins	GND	—	0.3VDD 0.3VDDIO	V	2.7V ≤ VDD/VDDIO ≤ 5.5V
DI_3	VIH	Input High Voltage	0.7VDD 0.7VDDIO	—	VDD VDDIO	V	2.7V ≤ VDD/VDDIO ≤ 5.5V
DI_5	VOL	Output voltage low (Standard pins and TWIHS pins in GPIO mode, Low Drv Strength, DRVSTR = 0)⁽⁶⁾	—	—	0.2VDD 0.2VDDIO	V	IOL (2.7V ≤ VDD/VDDIO < 4.5V) = 2.5 mA IOL (4.5V ≤ VDD/VDDIO ≤ 5.5V) = 5 mA
DI_6		Output voltage low (High Sink, Low Drv Strength, DRVSTR = 0) ⁽⁵⁾					IOL (2.7V ≤ VDD/VDDIO < 4.5V) = 5 mA IOL (4.5V ≤ VDD/VDDIO ≤ 5.5V) = 10 mA
DI_7		Output voltage low (Standard pins and TWIHS pins in GPIO mode, High Drv Strength, DRVSTR = 1)⁽⁶⁾					IOL (2.7V ≤ VDD/VDDIO < 4.5V) = 5 mA IOL (4.5V ≤ VDD/VDDIO ≤ 5.5V) = 10 mA
DI_8		Output voltage low (High Sink, High Drv Strength, DRVSTR = 1) ⁽⁵⁾					IOL (2.7V ≤ VDD/VDDIO < 4.5V) = 10 mA IOL (4.5V ≤ VDD/VDDIO ≤ 5.5V) = 20 mA
DI_9	VOH	Output voltage High (Standard pins and TWIHS pins in GPIO mode, Low Drv Strength, DRVSTR = 0)⁽⁶⁾	0.8VDD 0.8VDDIO	—	—	V	IOH (2.7V ≤ VDD/VDDIO < 4.5V) = 1.5 mA IOH (4.5V ≤ VDD/VDDIO ≤ 5.5V) = 3 mA
DI_10		Output voltage High (High Sink, Low Drv Strength, DRVSTR = 0)⁽⁵⁾					IOH (2.7V ≤ VDD/VDDIO < 4.5V) = 3 mA IOH (4.5V ≤ VDD/VDDIO ≤ 5.5V) = 6 mA
DI_11		Output voltage High (Standard pins and TWIHS pins in GPIO mode, High Drv Strength, DRVSTR = 1)⁽⁶⁾					IOH (2.7V ≤ VDD/VDDIO < 4.5V) = 3 mA IOH (4.5V ≤ VDD/VDDIO ≤ 5.5V) = 6 mA
DI_12		Output voltage High (High Sink, High Drv Strength, DRVSTR = 1)⁽⁵⁾					IOH (2.7V ≤ VDD/VDDIO < 4.5V) = 6 mA IOH (4.5V ≤ VDD/VDDIO ≤ 5.5V) = 12 mA
DI_13	IIL	Input pin leakage current	-1	—	1	µA	GND ≤ VPIN ≤ 5.5V (VPIN = Voltage present on Pin)
DI_15	RPDWN	Internal Pull-Down (DIR = OUT = 0, PULLEN = 1)	20	—	60	kΩ	2.7V ≤ VDD/VDDIO ≤ 5.5V
DI_17	RPUP	Internal Pull-Up (DIR = 0, OUT = PULLEN = 1)	20	—	60	kΩ	2.7V ≤ VDD/VDDIO ≤ 5.5V
DI_19	IICL^(1,3,4)	Input Low Injection Current	-1	—	—	mA	This parameter applies to all I/O pins.
DI_21	IICH^(2,3,4)	Input High Injection Current	—	—	1	mA	This parameter applies to all pins,
DI_23	∑IICT	Total Input Injection Current (sum of all I/O and control pins) Absolute value of \| ∑IICT \|	-45	—	45	mA	Absolute instantaneous sum of all ± input injection currents from all I/O pins. ( \| IICL \| + \| IICH \| ) ≤ ∑IICT
DI_25	TRISE	I/O pin Rise Time (Standard pins, Low Drv Strength, DRVSTR = 0) ⁽⁶⁾	—	—	15	ns	VDDIO(min), CLOAD = 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⁾	—	—	7	ns
DI_27	TFALL	I/O pin Fall Time (Standard pins, Low Drv Strength, DRVSTR = 0) ⁽⁶⁾	—	—	14	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⁾	—	—	7	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 the 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 the 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.