1.1 Features
CPU and On-Chip Memory
• ESP32-S2 or ESP32-S2R2 embedded, Xtensa®
single-core 32-bit LX7 microprocessor, up to
240 MHz
• 128 KB ROM
• 320 KB SRAM
• 16 KB SRAM in RTC
• 2 MB PSRAM (ESP32-S2R2 only)
Wi-Fi
• 802.11 b/g/n
• Bit rate: 802.11n up to 150 Mbps
• A-MPDU and A-MSDU aggregation
• 0.4 μs guard interval support
• Center frequency range of operating channel:
2412 ~ 2484 MHz
Peripherals
• GPIO, SPI, LCD, UART, I2C, I2S, Camera
interface, IR, pulse counter, LED PWM, TWAI®
(compatible with ISO 11898-1, i.e. CAN
Specification 2.0), full-speed USB OTG, ADC,
DAC, touch sensor, temperature sensor,
general-purpose timers, watchdog timers
Note:
* Please refer to ESP32-S2 Series Datasheet for
detailed information about the module peripherals.
Integrated Components on Module
• 40 MHz crystal oscillator
• Quad SPI flash up to 16 MB
Antenna Options
• On-board PCB antenna (ESP32-S2-SOLO-2)
• External antenna via a connector
(ESP32-S2-SOLO-2U)
Operating Conditions
• Operating voltage/Power supply: 3.0 ~ 3.6 V
• Operating ambient temperature:
– 85 °C version: –40 ~ 85 °C
– 105 °C version: –40 ~ 105 °C
(ESP32-S2-SOLO-2-H4) and
ESP32-S2-SOLO-2U-H4 only)
Certification
• RF certification: See certificates
• Green certification: RoHS/REACH
Test
• HTOL/HTSL/uHAST/TCT/ESD/Latch-up