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)
DI_3	VIH	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 = 3 mA ⁽⁶⁾
		4x Drive Strength I/O pins (Output Low)					VDDIO ≥ 3.0V @ IOL = 7 mA ⁽⁶⁾
		8x Drive Strength I/O pins (Output Low)					VDDIO < 3.0V @ IOL = 6 mA ⁽⁶⁾
		8x Drive Strength I/O pins (Output Low)					VDDIO ≥ 3.0V @ IOL = 13 mA ⁽⁶⁾
DI_9	VOH	4x Drive Strength I/O pins (Output High)	VDDIO-0.6V	—	—	V	VDDIO < 3.0V @ IOH = 5 mA ⁽⁶⁾
		4x Drive Strength I/O pins (Output High)					VDDIO ≥ 3.0V @ IOH = 11 mA ⁽⁶⁾
		8x Drive Strength I/O pins (Output High)					VDDIO < 3.0V @ IOH = 9 mA ⁽⁶⁾
		8x Drive Strength I/O pins (Output High)					VDDIO ≥ 3.0V @ IOH = 19 mA ⁽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	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	—	—	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: V_IL source < (GND - 0.3). Characterized but not tested. V_IH source > (VDDIO + 0.3) for non-5V tolerant pins only. Digital 5V tolerant pins do not have an internal high side Diode-to-VDDIO, and 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., V_IH Source > (VDDIO + 0.3) or V_IL source < (GND - 0.3)). Any number and/or combination of I/O pins not excluded under I_ICL or I_ICH 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 R_SERIES, (i.e. R_S), 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): R_S ≥ absolute value of \| ((V_IL source - (GND - 0.3)) / I_ICL) \| For positive input voltages greater than (VDDIO +0.3): R_S ≥ ((V_IH source - (VDDIO +0.3))/ I_ICH) For Vpin voltages >VDDIO +0.3 and <GND-0.3 then R_S = 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

Figure 51-3. IOL vs VOL, 4x Drive Strength I/O on Typical parts with VDDIO = 1.71 V

Figure 51-4. IOL vs VOL, 4x Drive Strength I/O on Typical parts with VDDIO = 3.0 V

Figure 51-5. IOL vs VOL, 8x Drive Strength I/O on Typical parts with VDDIO = 1.71 V

Figure 51-6. IOL vs VOL, 8x Drive Strength I/O on Typical parts with VDDIO = 3.0 V

Figure 51-7. IOH vs VOH, 4x Drive Strength I/O on Typical parts with VDDIO = 1.71 V

Figure 51-8. IOH vs VOH, 4x Drive Strength I/O on Typical parts with VDDIO = 3.0 V

Figure 51-9. IOH vs VOH, 8x Drive Strength I/O on Typical parts with VDDIO = 1.71 V

Figure 51-10. IOH vs VOH, 8x Drive Strength I/O on Typical parts with VDDIO = 3.0 V