Espressif Systems ESP32-S2-WROOM User Manual page 3

1. Module Overview
1. Module Overview
1.1 Features
MCU
• ESP32-S2 embedded, Xtensa
LX7 microprocessor, up to 240 MHz
• 128 KB ROM
• 320 KB SRAM
• 16 KB SRAM in RTC
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 ~ 2462 MHz
1.2 Description
ESP32-S2-WROOM and ESP32-S2-WROOM-I are two powerful, generic Wi-Fi MCU modules that have a rich set
of peripherals. They are an ideal choice for a wide variety of application scenarios relating to Internet of Things
(IoT), wearable electronics and smart home.
ESP32-S2-WROOM comes with a PCB antenna, and ESP32-S2-WROOM-I with an IPEX antenna. They both
feature a 4 MB external SPI flash. The information in this datasheet is applicable to both modules.
The ordering information of the two modules is listed as follows:
Module
ESP32-S2-WROOM (PCB)
ESP32-S2-WROOM-I (IPEX)
Notes:
1. The module with various capacities of flash is available for custom order.
2. For dimensions of the IPEX connector, please see Section 7.3.
Espressif Systems
Hardware
®
single-core 32-bit
Certification
Test
Table 1: Ordering Information
Chip embedded Flash
ESP32-S2 4 MB
2
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• Interfaces: GPIO, SPI, LCD, UART, I
era interface, IR, pulse counter, LED PWM, USB
OTG 1.1, ADC, DAC, touch sensor, temperature
sensor
• 40 MHz crystal oscillator
• 4 MB SPI flash
• Operating voltage/Power supply: 3.0
• Operating temperature range: –40
• Dimensions: (18 × 31 × 3.3) mm
• Green certification: RoHS/REACH
• RF certification: FCC/CE-RED/SRRC
• HTOL/HTSL/uHAST/TCT/ESD
Module dimensions (mm)
(18.00±0.15)×(31.00±0.15)×(3.30±0.15)
ESP32-S2-WROOM & ESP32-S2-WROOM-I User Manual V0.5
2 2
C, I S, Cam-
~ 3.6 V
~ 85 °C