51.12 I/O Pin Electrical Specifications

Table 51-15. I/O Pin AC/DC Electrical Specifications
AC - DC CHARACTERISTICS Standard Operating Conditions: VDDREG=VDDIO=AVDD 1.71V to 3.63V (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 — 0.2*VDDIO V VDDIO(min) -to- VDDIO(max)
DI_3 VIH Input High Voltage Non-5v tolerant I/O Pins 0.7*VDDIO — VDDIO V VDDIO(min) -to- VDDIO(max)
Input High Voltage I/O Pins 5V-tolerant 0.7*VDDIO — 5.5V V VDDIO(min) -to- 5.5V
DI_5 VOL 4x Drive Strength I/O pins

(Output Low)

 — — 0.4 V VDDIO < 3.0V @ IOL = 3mA (6)
VDDIO ≥ 3.0V @ IOL = 7mA (6)
8x Drive Strength I/O pins

(Output Low)

 VDDIO < 3.0V @ IOL = 6mA (6)
VDDIO ≥ 3.0V @ IOL = 13mA (6)
DI_9 VOH 4x Drive Strength I/O pins

(Output High)

 VDDIO-0.6V — — V VDDIO < 3.0V @ IOH = 5mA (6)
VDDIO ≥ 3.0V @ IOH = 11mA (6)
8x Drive Strength I/O pins

(Output High)

 VDDIO < 3.0V @ IOH = 9mA (6)
VDDIO ≥ 3.0V @ IOH = 19mA (6)
DI_13 IIL Input pin leakage current -1 — 1 µA GND ≤ VPIN ≤ VDDIO(max)

(VPIN = Voltage present on Pin)
DI_14 IIL_5V Input 5.5V tolerant pin leakage current -1.1 — 3.5 µA For VDDIO < 1.9V:

GND ≤ VPIN ≤ VDDIO+3.6

For VDDIO ≥ 1.9V:

1.9V ≤ VPIN ≤ 5.5V

(VPIN = Voltage present on Pin)
DI_15 RPDWN Internal Pull-Down

(DIR = OUT = 0, PULLEN = 1)

 25 — 400 kΩ VDDIOx(min) - VDDIO(max)
DI_17 RPUP Internal Pull-Up

(DIR = 0, OUT = PULLEN = 1)

 -400 — -30 kΩ
DI_19 IICL Input Low Injection Current -5 — — mA This parameter applies to all I/O pins.(1,4,5)
DI_21 IICH Input High Injection Current — — 5 mA This parameter applies to all pins, with the exception of 5V tolerant I/O pins(2,3,4,5)
DI_23 ∑IICT Total Input Injection Current (sum of all I/O and control pins) Absolute value of | ∑IICT | -20 — 20 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

(DRVSTR = 4x)

 — — 11 ns VDDIOx(min), CLOAD = 30 pF(MAX)
DI_27 TFALL I/O pin Fall Time

(DRVSTR = 4x)

 — — 10.1 ns
DI_29 TRISE I/O pin Rise Time

(DRVSTR = 8x, SLEW = FAST)

 — — 6.3 ns
I/O pin Rise Time

(DRVSTR = 8x, SLEW = SLOW4)

 — — 20.5 ns
I/O pin Rise Time

(DRVSTR = 8x, SLEW = SLOW8)

 — — 36.7 ns
I/O pin Rise Time

(DRVSTR = 8x, SLEW = SLOW12)

 — — 51.8 ns
DI_31 TFALL I/O pin Fall Time

(DRVSTR = 8x, SLEW = FAST)

 — — 5.8 ns
I/O pin Fall Time

(DRVSTR = 8x, SLEW = SLOW4)

 — — 23.3 ns
I/O pin Fall Time

(DRVSTR = 8x, SLEW = SLOW8)

 — — 39.8 ns
I/O pin Fall Time

(DRVSTR = 8x, SLEW = SLOW12)

 — — 56.7 ns
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 , and 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/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-0.3): 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
Table 51-16. I/O Drive Strength
Drive Strength IO Port/Pad
4x PA20, PA21, PA22, PA23, PA15, PA16, PA17, PA24, PA25, PA26, PA27, PA04, PA05, PA06, PA07, PA08, PA18, PA28, PA19, PA09, PA10, PA11, PA12, PB00, PB01, PB11, PB12, PB18, PB19, PB20, PB02, PB03, PB04, PB05, PB13, PB06, PB14, PB15, PB21, PB22, PB23, PB24, PB25, PB26, PB16, PB17, PB08, PC03, PC04, PC21, PC22, PC14, PC23, PC24, PC25, PC26, PC27, PC09, PC15, PC28, PC29, PC17, PC18, PD00, PD01, PD15, PD18, PD19, PD20, PD21
8x PA00, PA01, PA02, PA03, PA13, PA14, PB07, PB09, PB10, PC00, PC01, PC02, PC05, PC06, PC07, PC16, PC10, PC11, PC12, PC13, PC19, PC20, PD02, PD13, PD14, PD16, PD17, PD12, PD05, PD06, PD07, PD08, PD09, PD10, PD11