32.11 I/O Pin Characteristics

Table 32-17. I/O Pin Characteristics (TA=[-40, 85]°C, VDD=[1.8, 5.5]V unless otherwise noted)
SymbolDescriptionConditionMin.Typ.Max.Unit
VILInput Low Voltage-0.2-0.3×VDDV
VIHInput High Voltage0.7×VDD-VDD+0.2VV
IIH / IILI/O pin Input Leakage CurrentVDD = 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/source current per pin groupTA = 125°C--100(1,2)mA
Maximum combined I/O sink/source current per pin groupTA = 25°C--200(1,2)
tRISERise timeVDD = 3.0V, load = 20 pF-2.5-ns
VDD= 5.0 V, load = 20 pF-1.5-
VDD = 3.0 V, load = 20 pF, slew rate enabled-19-
VDD= 5.0 V, load = 20 pF, slew rate enabled-9-
tFALLFall timeVDD = 3.0 V, load = 20 pF-2.0-ns
VDD = 5.0 V, load = 20 pF-1.3-
VDD = 3.0 V, load = 20 pF, slew rate enabled-21-
VDD = 5.0 V, load = 20 pF, slew rate enabled-11-
CpinI/O pin capacitance except for TOSC, VREFA, and TWI pins-3.5-pF
CpinI/O pin capacitance on TOSC pins-4-pF
CpinI/O pin capacitance on TWI pins-10-pF
CpinI/O pin capacitance on VREFA pin-14-pF
RpPull-up resistor203550kΩ
Note:
  1. Pin group A (PA[7:0]), PF[6:2]), pin group B (PB[7:0], PC[7:0]), pin group C (PD:7:0, PE[3:0], PF[1:0]). For 28-pin and 32-pin devices, pin group A and B should be seen as a single group. The combined continuous sink/source current for each group should not exceed the limits.
  2. These parameters are for design guidance only and are not production tested.