46.8 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 Low Voltage (Standard pins and TWIHS pins in GPIO mode, Low Drv Strength, DRVSTR = 0)(6) | — | — | 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 Low Voltage (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 Low Voltage (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 Low Voltage (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 High Voltage (Standard pins and TWIHS pins in GPIO mode, Low Drv Strength, DRVSTR = 0)(6) | 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 High Voltage (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 High Voltage (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 High Voltage (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 | µA | GND ≤ VPIN ≤ 5.5V (VPIN = Voltage present on Pin) |
| DI_15 | RPDWN | Internal Pull-Down (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 = 30 pF (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:
- 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/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 the
following:
- 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
- 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/I2CM_7 and I2CS_5/I2CS_7 parameters.
- Rising and falling measurements given between 10% and 90%.
- The RESET pin has the same properties as standard GPIOs.