50.7 I/O Pin Electrical Specifications

Table 50-8. I/O Pin Electrical Specifications (1)
DC CHARACTERISTICSStandard Operating Conditions: VDD = AVDD = 1.62V to 3.63V (unless otherwise stated)

Operating temperature: -40°C ≤ TA ≤ +125°C for Extended Temp

Param. No.SymbolCharacteristics Min.Typ.Max.UnitsConditions
DI_25TRISE (5)I/O pin Rise Time

(Normal Pins)

(Low Drive Strength, DRVSTR = 0)

33nsVDD/AVDD(min), CLOAD = 30 pF(Max.)
DI_25AI/O pin Rise Time

(High Sink Pins)

(Low Drive Strength, DRVSTR = 0)

20
DI_25BI/O pin Rise Time

(Normal Pins)

(High Drive Strength, DRVSTR = 1)

19
DI_25CI/O pin Rise Time

(High Sink Pins)

(High Drive Strength, DRVSTR = 1)

12
DI_27TFALL (5)I/O pin Fall Time

(Normal Pins)

(Low Drive Strength, DRVSTR = 0)

26ns
DI_27AI/O pin Fall Time

(High Sink Pins)

(Low Drive Strength, DRVSTR = 0)

17
DI_27BI/O pin Fall Time

(Normal Pins)

(High Drive Strength, DRVSTR = 1)

15
DI_27CI/O pin Fall Time

(High Sink Pins)

(High Drive Strength, DRVSTR = 1)

14
Note:
  1. VIL source < (VSS - 0.3). Characterized but not tested.
  2. VIH source > (VDD + 0.3).
  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 > (VDD + 0.3) or VIL source < (VSS - 0.3)).
  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 (VSS - 0.3): RS ≥ absolute value of | ((VIL source - (VSS - 0.3)) / IICL) |
    • For positive input voltages greater than (VDD + 0.3): RS ≥ ((VIH source - (VDD + 0.3))/ IICH)
    • For Vpin voltages >VDD + 0.3 and <VSS - 0.3 then RS = the larger of the values calculated above
  5. High Sink I/O pins are: PA08, PA09, PA12, PA13, PA16, PA17, PA22, PA23, PA31, PB12, PB13, PB16, PB17, PB30, PB31.