User's Manual
PRELIMINARY
5. Electrical Characteristics
5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Stresses beyond the absolute maximum ratings listed in the table below may cause permanent damage to the
device. These are stress ratings only, and do not refer to the functional operation of the device that should
follow the recommended operating conditions.
Table 5: Absolute Maximum Ratings
1. The module worked properly after a 24-hour test in ambient temperature at 25 °C, and the IOs in three domains
(VDD3P3_RTC, VDD3P3_CPU, VDD_SDIO) output high logic level to ground.
2. Please see Appendix IO_MUX of ESP32 Datasheet for IO’s power domain.
5.2 Recommended Operating Conditions
Table 6: Recommended Operating Conditions
Symbol
Parameter
Min
Typical
Max
Unit
VDD33
Power supply voltage
3.0
3.3
3.6
V
I
V DD
Current delivered by external power supply
0.5
-
-
A
T
Operating temperature
–40
-
85
°C
5.3 DC Characteristics (3.3 V, 25 °C)
Table 7: DC Characteristics (3.3 V, 25 °C)
Symbol
Parameter
Min
Typ
Max
Unit
C
IN
Pin capacitance
-
2
-
pF
V
IH
High-level input voltage
0.75×VDD
1
-
VDD
1
+0.3
V
V
IL
Low-level input voltage
–0.3
-
0.25×VDD
1
V
I
IH
High-level input current
-
-
50
nA
I
IL
Low-level input current
-
-
50
nA
V
OH
High-level output voltage
0.8×VDD
1
-
-
V
V
OL
Low-level output voltage
-
-
0.1×VDD
1
V
High-level source current
VDD3P3_CPU power domain
1;
2
-
40
-
mA
I
OH
(VDD
1
= 3.3 V, V
OH
>= 2.64 V,
VDD3P3_RTC power domain
1;
2
-
40
-
mA
output drive strength set to the
VDD_SDIO power domain
1;
3
-
20
-
mA
maximum)
Espressif Systems 10 ESP32-WROOM-32E User Manual