GPIO Electrical specification

GPIO Electrical Specification


Symbol	Description	Min.	Typ.	Max.	Units
V_IH	Input high voltage	0.7 x VDD		VDD	V
V_IL	Input low voltage	VSS		0.3 x VDD	V
V_OH,SD	Output high voltage, standard drive, 0.5 mA, VDD ≥1.7	VDD - 0.4		VDD	V
V_OH,HDH	Output high voltage, high drive, 5 mA, VDD >= 2.7 V	VDD - 0.4		VDD	V
V_OH,HDL	Output high voltage, high drive, 3 mA, VDD >= 1.7 V	VDD - 0.4		VDD	V
V_OL,SD	Output low voltage, standard drive, 0.5 mA, VDD ≥1.7	VSS		VSS + 0.4	V
I_OL,SD	Current at VSS+0.4 V, output set low, standard drive, VDD ≥1.7	1	3	4	mA
I_OL,HDL	Current at VSS+0.4 V, output set low, high drive, VDD >= 1.7 V	3			mA
I_OL,ED	Current at VSS+0.4 V, output set low, extra drive, VDD >= 1.7 V	16			mA
I_OH,SD	Current at VDD-0.4 V, output set high, standard drive, VDD ≥1.7	1	3	4	mA
I_OH,HDL	Current at VDD-0.4 V, output set high, high drive, VDD >= 1.7 V	4			mA
I_OH,ED	Current at VDD-0.4 V, output set high, extra drive, VDD >= 1.7 V	14			mA
I_GPIO,TOTAL	Recommended maximum sustained current drawn by all GPIOs			15	mA
t_HRF,12pF	Rise/Fall time, high drive mode, 20-80%, 12 pF load¹		4		ns
t_ERF,12pF	Rise/Fall time, extra drive mode, 20-80%, 12 pF load¹		0.9		ns
R_PU	Pull-up resistance	12	14	16	kΩ
R_PD	Pull-down resistance	12	14	18	kΩ
t_OE,ED	Output enable delay in extra drive mode			855	ns
C_PAD	Pad capacitance		1		pF
C_{PAD_NFC}	Pad capacitance on NFC pads		5		pF