46.8 I/O Pin Electrical Specifications

Table 46-10. I/O Pin Electrical Specifications
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(1) Min. Typ. Max. Units Conditions
DI_1 VIL Input Low-Voltage I/O Pins GND — 0.3*VDD

0.3*VDDIO

 V 2.7V ≤ VDD/VDDIO ≤ 5.5V
DI_3 VIH Input High-Voltage 0.7*VDD

0.7*VDDIO

 — VDD

VDDIO

 V
DI_5 VOL Output voltage low (Standard pins and TWIHS pins in GPIO mode, Low Drv Strength, DRVSTR = 0) — — 0.2*VDD

0.2*VDDIO

 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) (5,6) 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) 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) (5,6) 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) 0.8*VDD

0.8*VDDIO

 — — — 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) (5,6) 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) 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) (5,6) 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 µA GND ≤ VPIN ≤ 5.5V (VPIN = Voltage present on Pin)
DI_15 RPDWN Internal Pull-Dwn (DIR=OUT=0, PULLEN=1) — — 60 kΩ 2.7V ≤ VDD/VDDIO ≤ 5.5V
DI_17 RPUP Internal Pull-Up (DIR=0, OUT=PULLEN=1) — — 60 kΩ
DI_19 IICL Input Low Injection Current -1 — — mA

This parameter applies to all I/O pins. (1,3,4)
DI_21 IICH Input High Injection Current — — 15 mA

This parameter applies to all pins (2,3,4)
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 (7) I/O pin Rise Time (Standard pins, Low Drv Strength, DRVSTR=0) (6) — — 22.5 ns VDDIO(min), CLOAD=30pF (MAX)
I/O pin Rise Time (High Sink, Low Drv Strength, DRVSTR=0) (5) — — 16 ns
I/O pin Rise Time (Standard pins, High Drv Strength, DRVSTR=1) (6) — — 13.1 ns
I/O pin Rise Time (High Sink, High Drv Strength, DRVSTR=1) (5) — — 10.1 ns
DI_27 TFALL (7) I/O pin Fall Time (Standard pins, Low Drv Strength, DRVSTR=0) (6) — — 22.4 ns
I/O pin Fall Time (High Sink, Low Drv Strength, DRVSTR=0) (5) — — 18.1 ns
I/O pin Fall Time (Standard pins, High Drv Strength, DRVSTR=1) (6) — — 13 ns
I/O pin Fall Time (High Sink, High Drv Strength, DRVSTR=1) (5) — — 11.3 ns
Note:
  1. VIL source < (GND - 0.6). Characterized but not tested.
  2. 5.5V < VIH source ≤ 6.1V.
  3. 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)).
  4. Any number and/or 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 - 0.36)) / 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
  5. The following pins are High Sink pins and have different properties than standard pins: PA10, PA11, PB10, PB11.
  6. 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/I2CM_7 and I2CS_5/I2CS_7 parameters.
  7. Rising and falling measurements given between 10% and 90%.
  8. The RESET pin has the same properties as standard GPIOs.