
- •Product Overview
- •Features
- •Applications
- •1 ESP32 Series Comparison
- •1.1 Nomenclature
- •1.2 Comparison
- •2 Pins
- •2.1 Pin Layout
- •2.2 Pin Overview
- •2.2.1 Restrictions for GPIOs and RTC_GPIOs
- •2.3 Power Supply
- •2.3.1 Power Scheme
- •2.4 Strapping Pins
- •2.5 Pin Mapping Between Chip and Flash/PSRAM
- •3 Functional Description
- •3.1 CPU and Memory
- •3.1.2 Internal Memory
- •3.1.4 Address Mapping Structure
- •3.1.5 Cache
- •3.2 System Clocks
- •3.2.1 CPU Clock
- •3.2.2 RTC Clock
- •3.3.1 Power Management Unit (PMU)
- •3.4 Timers and Watchdogs
- •3.4.1 General Purpose Timers
- •3.4.2 Watchdog Timers
- •3.5 Cryptographic Hardware Accelerators
- •3.6.1 2.4 GHz Receiver
- •3.6.2 2.4 GHz Transmitter
- •3.6.3 Clock Generator
- •3.7 Bluetooth
- •3.7.1 Bluetooth Radio and Baseband
- •3.7.2 Bluetooth Interface
- •3.7.3 Bluetooth Stack
- •3.8.1 General Purpose Input / Output Interface (GPIO)
- •3.8.2 Serial Peripheral Interface (SPI)
- •3.8.3 Universal Asynchronous Receiver Transmitter (UART)
- •3.8.4 I2C Interface
- •3.8.5 I2S Interface
- •3.8.6 Remote Control Peripheral
- •3.8.7 Pulse Counter
- •3.8.8 LED PWM Controller
- •3.8.9 Motor Control PWM
- •3.8.10 SD/SDIO/MMC Host Controller
- •3.8.11 SDIO/SPI Slave Controller
- •3.8.13 Ethernet MAC Interface
- •3.9 Analog Peripherals
- •3.9.3 Touch Sensor
- •3.10 Peripheral Pin Configurations
- •4 Electrical Characteristics
- •4.1 Absolute Maximum Ratings
- •4.2 Recommended Power Supply Characteristics
- •4.4 RF Current Consumption in Active Mode
- •4.7 Bluetooth Radio
- •4.8 Bluetooth LE Radio
- •4.8.1 Receiver
- •4.8.2 Transmitter
- •5 Packaging
- •6 Related Documentation and Resources
- •A.1. Notes on ESP32 Pin Lists
- •A.2. GPIO_Matrix
- •A.3. Ethernet_MAC
- •Revision History

4 Electrical Characteristics
Parameter |
Description |
Min |
Typ |
Max |
Unit |
|
π/4 DQPSK max w0 |
— |
— |
–0.72 |
— |
kHz |
|
|
|
|
|
|
|
|
π/4 DQPSK max wi |
— |
— |
–6 |
— |
kHz |
|
|
|
|
|
|
|
|
π/4 DQPSK max |wi + w0| |
— |
— |
–7.42 |
— |
kHz |
|
|
|
|
|
|
|
|
8DPSK max w0 |
— |
— |
0.7 |
— |
kHz |
|
|
|
|
|
|
|
|
8DPSK max wi |
— |
— |
–9.6 |
— |
kHz |
|
|
|
|
|
|
|
|
8DPSK max |wi + w0| |
— |
— |
–10 |
— |
kHz |
|
|
|
|
|
|
|
|
|
RMS DEVM |
— |
4.28 |
— |
% |
|
|
|
|
|
|
|
|
π/4 DQPSK modulation accuracy |
99% DEVM |
— |
100 |
— |
% |
|
|
|
|
|
|
|
|
|
Peak DEVM |
— |
13.3 |
— |
% |
|
|
|
|
|
|
|
|
|
RMS DEVM |
— |
5.8 |
— |
% |
|
|
|
|
|
|
|
|
8 DPSK modulation accuracy |
99% DEVM |
— |
100 |
— |
% |
|
|
|
|
|
|
|
|
|
Peak DEVM |
— |
14 |
— |
% |
|
|
|
|
|
|
|
|
|
F = F0 ± 1 MHz |
— |
–46 |
— |
dBm |
|
|
|
|
|
|
|
|
In-band spurious emissions |
F = F0 ± 2 MHz |
— |
–40 |
— |
dBm |
|
|
|
|
|
|
||
F = F0 ± 3 MHz |
— |
–46 |
— |
dBm |
||
|
||||||
|
|
|
|
|
|
|
|
F = F0 +/–> 3 MHz |
— |
— |
–53 |
dBm |
|
|
|
|
|
|
|
|
EDR differential phase coding |
— |
— |
100 |
— |
% |
|
|
|
|
|
|
|
4.8Bluetooth LE Radio
4.8.1Receiver
Table 4-11. Receiver Characteristics –Bluetooth LE
Parameter |
Description |
Min |
Typ |
Max |
Unit |
|
Sensitivity @30.8% PER |
— |
–94 |
–93 |
–92 |
dBm |
|
|
|
|
|
|
|
|
Maximum received signal @30.8% PER |
— |
0 |
— |
— |
dBm |
|
|
|
|
|
|
|
|
Co-channel C/I |
— |
— |
+10 |
— |
dB |
|
|
|
|
|
|
|
|
|
F = F0 + 1 MHz |
— |
–5 |
— |
dB |
|
|
|
|
|
|
|
|
|
F = F0 –1 MHz |
— |
–5 |
— |
dB |
|
|
|
|
|
|
|
|
Adjacent channel selectivity C/I |
F = F0 + 2 MHz |
— |
–25 |
— |
dB |
|
|
|
|
|
|
||
F = F0 –2 MHz |
— |
–35 |
— |
dB |
||
|
||||||
|
|
|
|
|
|
|
|
F = F0 + 3 MHz |
— |
–25 |
— |
dB |
|
|
|
|
|
|
|
|
|
F = F0 –3 MHz |
— |
–45 |
— |
dB |
|
|
|
|
|
|
|
|
|
30 MHz ~ 2000 MHz |
–10 |
— |
— |
dBm |
|
|
|
|
|
|
|
|
Out-of-band blocking performance |
2000 MHz ~ 2400 MHz |
–27 |
— |
— |
dBm |
|
2500 MHz ~ 3000 MHz |
–27 |
— |
— |
dBm |
||
|
||||||
|
|
|
|
|
|
|
|
3000 MHz ~ 12.5 GHz |
–10 |
— |
— |
dBm |
|
|
|
|
|
|
|
|
Intermodulation |
— |
–36 |
— |
— |
dBm |
|
|
|
|
|
|
|
Espressif Systems |
51 |
ESP32 Series Datasheet v4.3 |
Submit Documentation Feedback

4 Electrical Characteristics
4.8.2Transmitter
Table 4-12. Transmitter Characteristics –Bluetooth LE
Parameter |
Description |
Min |
Typ |
Max |
Unit |
RF transmit power (see note under Table 4-8) |
— |
— |
0 |
— |
dBm |
|
|
|
|
|
|
Gain control step |
— |
— |
3 |
— |
dB |
|
|
|
|
|
|
RF power control range |
— |
–12 |
— |
+9 |
dBm |
|
|
|
|
|
|
|
F = F0 ± 2 MHz |
— |
–52 |
— |
dBm |
|
|
|
|
|
|
Adjacent channel transmit power |
F = F0 ± 3 MHz |
— |
–58 |
— |
dBm |
|
|
|
|
|
|
|
F = F0 ± > 3 MHz |
— |
–60 |
— |
dBm |
|
|
|
|
|
|
∆ f1avg |
— |
— |
— |
265 |
kHz |
∆ f2max |
— |
247 |
— |
— |
kHz |
∆ f2avg/∆ f1avg |
— |
— |
0.92 |
— |
— |
ICFT |
— |
— |
–10 |
— |
kHz |
|
|
|
|
|
|
Drift rate |
— |
— |
0.7 |
— |
kHz/50 µs |
|
|
|
|
|
|
Drift |
— |
— |
2 |
— |
kHz |
|
|
|
|
|
|
Espressif Systems |
52 |
ESP32 Series Datasheet v4.3 |
Submit Documentation Feedback