Data Sheet

5. Electrical Characteristics
Symbol Parameter Min Typ Max Unit
I
OL
Low-level sink current
(VDD
1
= 3.3 V, V
OL
= 0.495 V,
output drive strength set to the maximum)
- 28 - mA
R
P U
Resistance of internal pull-up resistor - 45 - kΩ
R
P D
Resistance of internal pull-down resistor - 45 - kΩ
V
IL_nRST
Low-level input voltage of CHIP_PU to power off the chip - - 0.6 V
Notes:
1. Please see Appendix IO_MUX of ESP32 Datasheet for IO’s power domain. VDD is the I/O voltage for a particular power
domain of pins.
2. For VDD3P3_CPU and VDD3P3_RTC power domain, per-pin current sourced in the same domain is gradually reduced
from around 40 mA to around 29 mA, V
OH
>=2.64 V, as the number of current-source pins increases.
3. Pins occupied by flash and/or PSRAM in the VDD_SDIO power domain were excluded from the test.
5.4 Wi-Fi Radio
Table 8: Wi-Fi Radio Characteristics
Parameter Condition Min Typical Max Unit
Input frequency - 2412 - 2484 MHz
Output impedance* - - * - Ω
TX power 11n, MCS7 12 13 14 dBm
11b mode 17.5 18.5 20 dBm
Sensitivity 11b, 1 Mbps - –98 - dBm
11b, 11 Mbps - –89 - dBm
11g, 6 Mbps - –92 - dBm
11g, 54 Mbps - –74 - dBm
11n, HT20, MCS0 - –91 - dBm
11n, HT20, MCS7 - –71 - dBm
11n, HT40, MCS0 - –89 - dBm
11n, HT40, MCS7 - –69 - dBm
Adjacent channel rejection 11g, 6 Mbps - 31 - dB
11g, 54 Mbps - 14 - dB
11n, HT20, MCS0 - 31 - dB
11n, HT20, MCS7 - 13 - dB
∗
For the modules that use IPEX antennas, the output impedance is 50 Ω. For other modules without IPEX antennas, users do
not need to concern about the output impedance.
Espressif Systems 10 ESP32-WROOM-32D & ESP32-WROOM-32U Datasheet V1.8