I/O Pins

Table 1. I/O Pin Specifications
Symbol	Description	Min.	Typ.✝	Max.	Unit	Conditions
Input Low Voltage
V_IL	I/O PORT:
	with Schmitt Trigger buffer	—	—	0.2×V_DD	V
	with I²C levels	—	—	0.3×V_DD	V
	with SMBus 3.0 levels	—	—	0.8	V
	RESET pin	—	—	0.2×V_DD	V
Input High Voltage
V_IH	I/O PORT:
	with Schmitt Trigger buffer	0.8×V_DD	—	—	V
	with I²C levels	0.7×V_DD	—	—	V
	with SMBus 3.0 levels	1.35	—	—	V	0°C ≤ T_A ≤ +125°C, 2.5V ≤ V_DD ≤ 5.5V
	with SMBus 3.0 levels	1.45	—	—	V	0°C ≤ T_A ≤ +125°C, 1.8V ≤ V_DD ≤ 5.5V
	RESET Pin	0.8×V_DD	—	—	V
Input Leakage Current⁽¹⁾
I_IL	I/O PORTS	—	±5	±125	nA	GND ≤ V_PIN ≤ V_DD, pin at high-impedance, T_A= 85°C
	I/O PORTS	—	±5	±1000	nA	GND ≤ V_PIN ≤ V_DD, pin at high-impedance, T_A = 125°C
	RESET Pin⁽²⁾	—	±50	±200	nA	GND ≤ V_PIN ≤ V_DD, pin at high-impedance, T_A= 85°C
Pull-up Current
I_PUR		—	150	200	μA	V_DD = 3.0V, V_PIN = GND
Output Low Voltage
V_OL	Standard I/O ports	—	—	0.6	V	I_OL = 10 mA, V_DD = 3.0V
Output High Voltage
V_OH	Standard I/O ports	V_DD-0.7	—	—	V	I_OH = 6 mA, V_DD = 3.0V
I/O Slew Rate
	Rising slew rate	—	45	—	ns	PORTCTRL.SRL = `0x01`
	Rising slew rate	—	22	—	ns	PORTCTRL.SRL = `0x00`
	Falling slew rate	—	30	—	ns	PORTCTRL.SRL = `0x01`
	Falling slew rate	—	16	—	ns	PORTCTRL.SRL = `0x00`
Pin Capacitance
C_IO	All I/O pins	—	5	—	pF
✝ Data in the “Typ.” column is at T_A = 25°C and V_DD = 3.0V unless otherwise specified. These parameters are for design guidance only and are not tested. Notes: 1.The negative current is defined as the current sourced by the pin. 2.The leakage current on the RESET pin is strongly dependent on the applied voltage level. The specified levels represent normal operating conditions. A higher leakage current may be measured at different input voltages.