4.8 I/O Pin AC/DC Electrical Specifications

Table 4-11. I/O Pin AC/DC Electrical Specifications
AC - DC Characteristics			Standard Operating Conditions: V_DD = 1.9V to 3.6V (unless otherwise stated) Operating Temperature: -40°C ≤ T_A ≤ +85°C for Industrial Temp
Param. No.	Symbol	Characteristics	Min.	Typ.	Max.	Units	Conditions
DI_1	V_IL	Input low voltage I/O pins (Drive strength, 8x)	V_SS	—	0.2*V_DD	V	—
DI_1	V_IL	Input low voltage I/O pins (Drive strength, 4x)	V_SS	—	0.2*V_DD	V	—
DI_3	V_IH	Input high voltage, I/O pins (Drive strength, 8x)	0.65*VDD	—	V_DD	V	—
DI_3	V_IH	Input high voltage, I/O pins (Drive strength, 4x)	0.65*VDD	—	V_DD	V	—
DI_5	V_OL	4x Drive strength I/O pins (Output low)	—	—	0.4	V	V_DD = 3.3V at I_OL = 15 mA For 4x drive strength, add V_DD = 3.3V at IOL = 10 mA
DI_5	V_OL	8x Drive strength I/O pins (Output low)	—	—	0.4	V
DI_9	V_OH	4x Drive strength I/O pins (Output high)	V_DD-0.6	—	—	V	V_DD = 3.3V at I_OH = 15 mA
DI_9	V_OH	8x Drive strength I/O pins (Output high)	V_DD-0.6	—	—	V
DI_13	I_IL	Input pin leakage current	-1	—	+1	μA	GND ≤ V_PIN ≤ V_DD(max) (V_PIN = Voltage present on pin)
DI_15	R_PDWN	Internal pull-down resistance	10	18	40	kΩ	V_DD(min) to V_DD(max)
DI_17	R_PUP	Internal pull-up resistance	10	13	30	kΩ	V_DD(min) to V_DD(max)
DI_19	I_ICL	Input low injection current	0	—	-5	mA	This parameter applies to all I/O pins except VDD, VSS, VDD_A, GND, MCLR^(1,3,4)
DI_21	I_ICH	Input high injection current	0	—	+5	mA	This parameter applies to all pins, except V_DD, V_SS, VDD_A, GND, MCLR
DI_25	T_RISE	I/O pin rise time (Drive strength, 4x)	—	—	14	ns	V_DD = 3.3V, C_LOAD = 50 pF
		I/O pin rise time (Drive strength, 4x)	—	—	14	ns	V_DD = 3.3V, C_LOAD = 40 pf
		I/O pin rise time (Drive strength, 8x)	—	—	8	ns	V_DD = 3.3V, C_LOAD = 50 pF
		I/O pin rise time (Drive strength, 8x)	—	—	6	ns	V_DD = 3.3V, C_LOAD = 40 pF
DI_27	T_FALL	I/O pin fall time (Drive strength, 4x)	—	—	13	ns	V_DD = 3.3V, C_LOAD = 50 pF
		I/O pin fall time (Drive strength, 4x)	—	—	12	ns	V_DD = 3.3V, C_LOAD = 40 pF
		I/O pin fall time (Drive strength, 8x)	—	—	8	ns	V_DD = 3.3V, C_LOAD = 50 pF
		I/O pin fall time (Drive strength, 8x)	—	—	6	ns	V_DD = 3.3V, C_LOAD = 40 pF
Note: V_IL source < (GND – 0.3). Characterized but not tested in manufacturing. V_IH source > (V_DD + 0.3). Characterized but not tested in manufacturing. If the sum of all injection currents are > \| ∑IICT \|, it can affect the ADC results by approximately 4 to 6 counts (in other words, V_IHSource > (V_DD + 0.3) or V_IL source < (GND – 0.3)). 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 (RS), between the 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 \| ((V_IL source – (GND – 0.3))/IICL) \| For positive input voltages greater than (V_DD + 0.3): RS ≥ ((V_IH source – (V_DD +0.3))/IICH) For V_PIN voltages greater than V_DD + 0.3 and less than GND – 0.3: RS = the larger of the values calculated above