Specifications

5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Table 8: Absolute Maximum Ratings
Parameter Symbol Min Typ Max Unit
Power supply
VDD
2.7
3.3
3.6
V
Minimum current delivered by
power supply
I
V DD
0.5 - - A
Input low voltage
V
IL
-0.3 -
0.25×V
IO
1
V
Input high voltage
V
IH
0.75×V
IO
1
-
V
IO
1
+0.3
V
Input leakage current
I
I L
- - 50 nA
Input pin capacitance
C
pad
-
-
2
pF
Output low voltage
V
OL
-
-
0.1×V
IO
1
V
Output high voltage
V
OH
0.8×V
IO
1
-
-
V
Maximum output drive capability
I
MAX
-
-
40
mA
Storage temperature range
T
STR
-40
-
85
°C
Operating temperature range
T
OPR
-40
-
85
°C
1. V
IO
is the power supply for a specific pad. More details can be found in the ESP32 Datasheet, Appendix IO_MUX. For
example, the power supply for SD_CLK is the VDD_SDIO.