33.11 I/O Pin Characteristics

Operating conditions:
  • TA = [-40, 125]°C
  • VDD = [1.8, 5.5]V, unless otherwise specified
Table 33-16. I/O Pin Characteristics
SymbolDescriptionConditionMin.Typ.Max.Unit
VILInput low-voltage, except RESET pin as I/O-0.2-0.3 × VDDV
VIHInput high-voltage, except RESET pin as I/O0.7 × VDD-VDD + 0.2VV
IIH / IILI/O pin Input leakage current, except RESET pin as I/OVDD = 5.5V, Pin high-< 0.05-µA
VDD = 5.5V, Pin low-< 0.05-
VOLI/O pin drive strengthVDD = 1.8V, IOL = 1.5 mA--0.36V
VDD = 3.0V, IOL = 7.5 mA--0.6
VDD = 5.0V, IOL = 15 mA--1
VOHI/O pin drive strengthVDD = 1.8V, IOH = 1.5 mA1.44--V
VDD = 3.0V, IOH = 7.5 mA2.4--
VDD = 5.0V, IOH = 15 mA4--
ItotalMaximum combined I/O sink current per pin group(1)--100mA
Maximum combined I/O source current per pin group(1)--100
VIL2Input low-voltage on RESET pin as I/O-0.2-0.3 × VDDV
VIH2Input high-voltage on RESET pin as I/O0.7 × VDD-VDD + 0.2VV
VOL2I/O pin drive strength on RESET pin as I/OVDD = 1.8V, IOL = 0.1 mA--0.36V
VDD = 3.0V, IOL = 0.25 mA--0.6
VDD = 5.0V, IOL = 0.5 mA--1
VOH2I/O pin drive strength on RESET pin as I/OVDD = 1.8V, IOH = 0.1 mA1.44--V
VDD = 3.0V, IOH = 0.25 mA2.4--
VDD = 5.0V, IOH = 0.5 mA4--
tRISERise timeVDD = 3.0V, load = 20 pF-2.5-ns
VDD = 5.0V, load = 20 pF-1.5-
tFALLFall timeVDD = 3.0V, load = 20 pF-2.0-ns
VDD = 5.0V, load = 20 pF-1.3-
CPINI/O pin capacitance, unless otherwise specified -4-pF
CPIN_TOSCI/O pin capacitance on TOSC pins(2)-5-pF
CPIN_TWII/O pin capacitance on TWI pins(2)-12-pF
CPIN_ACI/O pin capacitance on AC pins(2)PB0 and PB1-12-pF
other AC pins-4-
CPIN_VREFAI/O pin capacitance on ADC VREFA pin-14-pF
RPPull-up resistor203550kΩ
Note:
  1. Pin group x (Px[7:0]). The combined continuous sink/source current for all I/O ports should not exceed the limits.
  2. This capacitance is valid for pins with this functionality, even when that functionality is not used.