53.2 I/O Pin AC/DC Electrical Specifications

Table 53-4. I/O Pin AC/DC Electrical Specifications
AC - DC CHARACTERISTICSStandard Operating Conditions: VDDREG = VDDIO = AVDD 1.71V to 3.6V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +125°C for Extended Temp

Param. No.SymbolCharacteristicsMin.TypMax.UnitsConditions
DI_25TRISEI/O pin Rise Time

(DRVSTR = 4x)

11.1nsVDDIOx(min), CLOAD = 30 pF(max)
DI_27TFALLI/O pin Fall Time

(DRVSTR = 4x)

10.6ns
DI_29TRISEI/O pin Rise Time

(DRVSTR = 8x, SLEW = FAST)

6.3ns
I/O pin Rise Time

(DRVSTR = 8x, SLEW = SLOW4)

21.1ns
I/O pin Rise Time

(DRVSTR = 8x, SLEW = SLOW8)

38.7ns
I/O pin Rise Time

(DRVSTR = 8x, SLEW = SLOW12)

54.6ns
DI_31TFALLI/O pin Fall Time

(DRVSTR = 8x, SLEW = FAST)

6.1ns
I/O pin Fall Time

(DRVSTR = 8x, SLEW = SLOW4)

24ns
I/O pin Fall Time

(DRVSTR = 8x, SLEW = SLOW8)

41.7ns
I/O pin Fall Time

(DRVSTR = 8x, SLEW = SLOW12)

61.5ns
Note:
  1. VIL source < (GND - 0.3). Characterized but not tested.
  2. VIH source > (VDDIO + 0.3) for non-5V tolerant pins only.
  3. Digital 5V tolerant pins do not have an internal high-side diode to VDDIO, therefore cannot tolerate any positive input injection current.
  4. 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 + 0.3) or VIL source < (GND - 0.3)).
  5. 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 the input source voltage and device pin. The resistor value is calculated according to the following:
    • For negative Input voltages less than (GND -0.3): RS ≥ absolute value of | ((VIL source - (GND -0.3)) / IICL) |
    • For positive input voltages greater than (VDDIO +0.3): RS ≥ ((VIH source - (VDDIO +0.3))/IICH)
    • For Vpin voltages > VDDIO +0.3 and < GND -0.3, then RS = The larger of the values calculated above