48.12 I/O Pin Electrical Characteristics

Table 48-15. 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 x VDDIO	—	VDDIO	V	VDDIO (min.) to VDDIO (max.)
DI_3	VIH	Input high voltage I/O pins 5V tolerant	0.7 x 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 at IOL = 3 mA⁽⁶⁾
		4x drive strength I/O pins (output low)					VDDIO ≥ 3.0V at IOL = 7 mA⁽⁶⁾
		8x drive strength I/O pins (output low)					VDDIO < 3.0V at IOL = 6 mA⁽⁶⁾
		8x drive strength I/O pins (output low)					VDDIO ≥ 3.0V at IOL = 10 mA⁽⁶⁾
DI_9	VOH	4x drive strength I/O pins (output high)	VDDIO-0.6V	—	—	V	VDDIO < 3.0V at IOH = 5 mA⁽⁶⁾
		4x drive strength I/O pins (output high)					VDDIO ≥ 3.0V at IOH = 11 mA⁽⁶⁾
		8x drive strength I/O pins (output high)					VDDIO < 3.0V at IOH = 9 mA⁽⁶⁾
		8x drive strength I/O pins (output high)					VDDIO ≥ 3.0V at IOH = 14 mA⁽⁶⁾
DI_13	IIL	Input pin leakage current	-1	—	1	µA	GND ≤ VPIN ≤ VDDIO (max.) (VPIN = voltage present on the pin)
DI_15	RPDWN	Internal pull-down (DIR = OUT = 0, PULLEN = 1)	12.6	—	14.6	kΩ	VDDIOx (min.) - VDDIO (max.)
DI_17	RPUP	Internal pull-up (DIR = 0, OUT = PULLEN = 1)	12	—	14.5	kΩ	VDDIOx (min.) - VDDIO (max.)
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	—	—	8	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 \|	-69	—	69	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)	—	—	10	ns	VDDIOx (min.), CLOAD = 30 pF (max.)
DI_27	TFALL	I/O pin fall time (DRVSTR = 4x)	—	—	9	ns
DI_29	TRISE	I/O pin rise time (DRVSTR = 8x, SLEW = FAST)	—	—	5.5	ns
		I/O pin rise time (DRVSTR = 8x, SLEW = SLOW4)	—	—	21	ns
		I/O pin rise time (DRVSTR = 8x, SLEW = SLOW8)	—	—	38	ns
		I/O pin rise time (DRVSTR = 8x, SLEW = SLOW12)	—	—	54	ns
DI_31	TFALL	I/O pin fall time (DRVSTR = 8x, SLEW = FAST)	—	—	5.5	ns
		I/O pin fall time (DRVSTR = 8x, SLEW = SLOW4)	—	—	24	ns
		I/O pin fall time (DRVSTR = 8x, SLEW = SLOW8)	—	—	43	ns
		I/O pin fall time (DRVSTR = 8x, SLEW = SLOW12)	—	—	61	ns
Note: VIL source < (GND -0.3). Characterized but not tested. VIH source > (VDDIO +0.3) for non 5V tolerant pins only. Digital 5V tolerant pins do not have an internal high side diode to VDDIO, therefore cannot tolerate any positive input injection current. 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)). Any number and 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 does not exceed the specified ∑IICT limit. To limit the injection current, the user must insert a resisters in series (RSERIES or RS) between the input source voltage and device pin. The resistor value is calculated using the following formula: 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 values from the calculations above IOL/IOH is specific to AC operation. For continuous DC operation characteristics, see the Absolute Maximum Ratings section. Not all I²C operating modes are supported on all pin types. Refer to the following table, I²C Support. Refer to the I/O Drive Strength table for the I/O pin Drive Strength.

Table 48-16. I²C Support
I²C Mode	I/O Pin Drive Strength
I²C Mode	4x	8x
I²C Standard Mode (SM), 100 kHz w/400 pF load	No	Yes
I²C Fast Mode (FM), 400 kHz w/400 pF load	No	Yes
I²C Fast Mode Plus (FM+), 1 MHz w/550 pF load	No	Yes
I²C High Speed (HS), 3.4 MHz w/100 pF load	No	Yes

Table 48-17. I/O Drive Strength
Drive Strength		I/O Port or Pad
4x		PA10, PA11, PA12, PA13, PA07, PA08, PA09, PA20, PA19, PB00, PB07, PB01, PB02, PB11, PB12, PB13, PB14, PB08, PB09, PB10, PC09, PC10, PC07, PC08, PD02, PD03, PD12, PD13, PD04, PD05
8x		PD09, PA00, PA14, PA01, PA15, PA02, PA16, PA17, PA18, PA03, PA04, PA05, PA06, PB03, PB04, PB05, PB06, PB15, PB16, PB17, PC00, PC11, PC12, PC01, PC13, PC02, PC14, PC15, PC03, PC16, PC04, PC17, PC18, PC19, PC05, PC06, PD00, PD10, PD14, PD11, PD01, PD15, PD16, PD17, PD18, PD06, PD07, PD19, PD08, PD20

Figure 48-7. IOL vs VOL, 4x Drive Strength I/O on Typical Parts with VDDIO = 1.71V

Figure 48-8. IOL vs VOL, 4x Drive Strength I/O on Typical Parts with VDDIO = 3.0V

Figure 48-9. IOL vs VOL, 8x Drive Strength I/O on Typical Parts with VDDIO = 1.71V

Figure 48-10. IOL vs VOL, 8x Drive Strength I/O on Typical Parts with VDDIO = 3.0V

Figure 48-11. IOH vs VOH, 4x Drive Strength I/O on Typical Parts with VDDIO = 1.71V

Figure 48-12. IOH vs VOH, 4x Drive Strength I/O on Typical Parts with VDDIO = 3.0V

Figure 48-13. IOH vs VOH, 8x Drive Strength I/O on Typical Parts with VDDIO = 1.71V

Figure 48-14. IOH vs VOH, 8x Drive Strength I/O on Typical Parts with VDDIO = 3.0V