Data Sheet

5. Electrical Characteristics
5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Stresses beyond the absolute maximum ratings listed in Table 5 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
Symbol Parameter Min Max Unit
VDD33 Power supply voltage –0.3 3.6 V
I
output
1
Cumulative IO output current - 1,100 mA
T
store
Storage temperature –40 150 °C
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. Please note that pins occupied by flash
and/or PSRAM in the VDD_SDIO power domain were excluded from the test.
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 2.7 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
I
OH
High-level source current VDD3P3_CPU power domain
1, 2
- 40 - mA
(VDD
1
= 3.3 V, V
OH
>= 2.64 V, VDD3P3_RTC power domain
1, 2
- 40 - mA
output drive strength set to the
maximum)
VDD_SDIO power domain
1, 3
- 20 - mA
Espressif Systems 9 ESP32-WROOM-32D & ESP32-WROOM-32U Datasheet V1.8