ESP32-S2-MINI-2
Wi-Fi + Bluetooth LE MCU ModuleThe ESP32-S2-MINI-2 is a wi-fi + bluetooth le mcu module from Espressif Systems. View the full ESP32-S2-MINI-2 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
ESP32-S2-MINI-2 shares its datasheet with ESP32-S3-MINI-1, whose page lists every part number it covers.
Official ESP32-S2-MINI-2 datasheet (PDF) — the source this page was extracted from.
Manufacturer
Espressif SystemsCategory
RF / WirelessESP32-S2-MINI-2 Key Specifications
| Parameter | Value |
|---|---|
| CPU | Xtensa dual-core 32-bit LX7, up to 240 MHz |
| ROM | 384 KB |
| SRAM | 512 KB (plus 16 KB RTC SRAM) |
| Flash | 4 MB or 8 MB Quad SPI |
| GPIOs | 39 |
| PSRAM | 0 or 2 MB Quad SPI |
| Wi-Fi | 802.11 b/g/n, up to 150 Mbps |
| Bluetooth | Bluetooth 5 LE, Bluetooth mesh (125 Kbps to 2 Mbps) |
| Interfaces | SPI, I2C, I2S, UART, USB 1.1 OTG, USB Serial/JTAG, SDIO host, TWAI (CAN 2.0), LCD, Camera, ADC, touch sensor |
| RF Frequency | 2412 MHz to 2484 MHz |
| Supply Voltage | 3.0V to 3.6V |
| Module Dimensions | 15.4 × 20.5 × 2.4 mm (MINI-1); 15.4 × 15.4 × 2.4 mm (MINI-1U) |
| Crystal Oscillator | 40 MHz |
| Operating Temperature | -40°C to 85°C (85 °C version); -40°C to 105°C (105 °C version) |
ESP32-S2-MINI-2 Overview
Part: ESP32-S3-MINI-1 / ESP32-S3-MINI-1U — Espressif Type: Wi-Fi + Bluetooth LE MCU Module Description: Powerful, generic Wi-Fi (802.11 b/g/n) and Bluetooth LE (Bluetooth 5) MCU modules built around an Xtensa dual-core 32-bit LX7 microprocessor operating up to 240 MHz, featuring up to 8 MB Flash, optional 2 MB PSRAM, and a rich set of peripherals for IoT applications.
Operating Conditions:
- Supply voltage: 3.0–3.6 V
- Operating ambient temperature: -40 to 85 °C (85 °C version), -40 to 105 °C (105 °C version)
- CPU clock frequency: up to 240 MHz
Absolute Maximum Ratings:
- Max supply voltage: 3.6 V
- Max storage temperature: 105 °C
Key Specs:
- CPU: Xtensa dual-core 32-bit LX7 microprocessor
- ROM: 384 KB
- SRAM: 512 KB
- SRAM in RTC: 16 KB
- Flash: up to 8 MB Quad SPI
- PSRAM: 2 MB (optional, ESP32-S3FH4R2 only)
- Wi-Fi standard: 802.11 b/g/n
- Bluetooth LE speed: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps
- High-level input current (I_IH): 50 nA (max)
Features:
- 2.4 GHz Wi-Fi (802.11 b/g/n)
- Bluetooth 5 (LE) and Bluetooth mesh
- Up to 39 GPIOs
- Rich set of peripherals: SPI, LCD, Camera interface, UART, I2C, I2S, remote control, pulse counter, LED PWM, USB 1.1 OTG, USB Serial/JTAG controller, MCPWM, SDIO host, GDMA, TWAI® controller (CAN Specification 2.0 compatible), ADC, touch sensor, temperature sensor, timers and watchdogs
- Internal co-existence mechanism for Wi-Fi and Bluetooth
- On-board PCB antenna (ESP32-S3-MINI-1) or external antenna connector (ESP32-S3-MINI-1U)
- 40 MHz crystal oscillator integrated
Applications:
- Generic Low-power IoT Sensor Hub
- Generic Low-power IoT Data Loggers
- Cameras for Video Streaming
- Over-the-top (OTT) Devices
- USB Devices
- Speech Recognition
- Image Recognition
- Mesh Network
- Home Automation
- Smart Building
- Industrial Automation
- Smart Agriculture
- Audio Applications
- Health Care Applications
- Wi-Fi-enabled Toys
- Wearable Electronics
- Retail & Catering Applications
Package:
- 15.4 × 20.5 × 2.4 mm (ESP32-S3-MINI-1 variants)
- 15.4 × 15.4 × 2.4 mm (ESP32-S3-MINI-1U variants)
ESP32-S2-MINI-2 Applications
-
Generic Low-power IoT Sensor Hub
-
Generic Low-power IoT Data Loggers
-
Cameras for Video Streaming
-
Over-the-top (OTT) Devices
-
USB Devices
-
Speech Recognition
-
Image Recognition
-
Mesh Network
-
Home Automation
-
Smart Building
-
Industrial Automation
-
Smart Agriculture
-
Audio Applications
-
Health Care Applications
-
Wi-Fi-enabled Toys
-
Wearable Electronics
-
Retail & Catering Applications
ESP32-S2-MINI-2 Pin Configuration
The module has 65 pins. See pin definitions in Table 2.
For explanations of pin names and function names, as well as configurations of peripheral pins, please refer to ESP32-S3 Series Datasheet .
Table 2: Pin Definitions
| Name | No. | Type a | Function |
|---|---|---|---|
| GND | 1, 2, 42, 43, 46-65 | P | GND |
| 3V3 | 3 | P | Power supply |
| IO0 | 4 | I/O/T | RTC_GPIO0, GPIO0 |
| IO1 | 5 | I/O/T | RTC_GPIO1, GPIO1 , TOUCH1, ADC1_CH0 |
| IO2 | 6 | I/O/T | RTC_GPIO2, GPIO2 , TOUCH2, ADC1_CH1 |
| IO3 | 7 | I/O/T | RTC_GPIO3, GPIO3 , TOUCH3, ADC1_CH2 |
| IO4 | 8 | I/O/T | RTC_GPIO4, GPIO4 , TOUCH4, ADC1_CH3 |
| IO5 | 9 | I/O/T | RTC_GPIO5, GPIO5 , TOUCH5, ADC1_CH4 |
| IO6 | 10 | I/O/T | RTC_GPIO6, GPIO6 , TOUCH6, ADC1_CH5 |
| IO7 | 11 | I/O/T | RTC_GPIO7, GPIO7 , TOUCH7, ADC1_CH6 |
| IO8 | 12 | I/O/T | RTC_GPIO8, GPIO8 , TOUCH8, ADC1_CH7, SUBSPICS1 |
| IO9 | 13 | I/O/T | RTC_GPIO9, GPIO9 , TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD |
| IO10 | 14 | I/O/T | RTC_GPIO10, GPIO10 , TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0 |
| IO11 | 15 | I/O/T | RTC_GPIO11, GPIO11 , TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID |
| IO12 | 16 | I/O/T | RTC_GPIO12, GPIO12 , TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK |
| IO13 | 17 | I/O/T | RTC_GPIO13, GPIO13 , TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ |
| IO14 | 18 | I/O/T | RTC_GPIO14, GPIO14 , TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP |
| IO15 | 19 | I/O/T | RTC_GPIO15, GPIO15 , U0RTS, ADC2_CH4, XTAL_32K_P |
| IO16 | 20 | I/O/T | RTC_GPIO16, GPIO16 , U0CTS, ADC2_CH5, XTAL_32K_N |
| IO17 | 21 | I/O/T | RTC_GPIO17, GPIO17 , U1TXD, ADC2_CH6 |
| IO18 | 22 | I/O/T | RTC_GPIO18, GPIO18 , U1RXD, ADC2_CH7, CLK_OUT3 |
| IO19 | 23 | I/O/T | RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D |
| IO20 | 24 | I/O/T | RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+ |
| IO21 | 25 | I/O/T | RTC_GPIO21, GPIO21 |
| IO26 b | 26 | I/O/T | SPICS1, GPIO26 |
| IO47 | 27 | I/O/T | SPICLK_P_DIFF, GPIO47 , SUBSPICLK_P_DIFF |
| IO33 | 28 | I/O/T | SPIIO4, GPIO33 , FSPIHD, SUBSPIHD |
| IO34 | 29 | I/O/T | SPIIO5, GPIO34 , FSPICS0, SUBSPICS0 |
| IO48 | 30 | I/O/T | SPICLK_N_DIFF, GPIO48 , SUBSPICLK_N_DIFF |
| IO35 | 31 | I/O/T | SPIIO6, GPIO35 , FSPID, SUBSPID |
| IO36 | 32 | I/O/T | SPIIO7, GPIO36 , FSPICLK, SUBSPICLK |
Cont'd on next page
Table 2: Pin Definitions
Table 2 - cont'd from previous page
| Name | No. | Type a | Function |
|---|---|---|---|
| IO37 | 33 | I/O/T | SPIDQS, GPIO37 , FSPIQ, SUBSPIQ |
| IO38 | 34 | I/O/T | GPIO38 , FSPIWP, SUBSPIWP |
| IO39 | 35 | I/O/T | MTCK , GPIO39, CLK_OUT3, SUBSPICS1 |
| IO40 | 36 | I/O/T | MTDO , GPIO40, CLK_OUT2 |
| IO41 | 37 | I/O/T | MTDI , GPIO41, CLK_OUT1 |
| IO42 | 38 | I/O/T | MTMS , GPIO42 |
| TXD0 | 39 | I/O/T | U0TXD , GPIO43, CLK_OUT1 |
| RXD0 | 40 | I/O/T | U0RXD , GPIO44, CLK_OUT2 |
| IO45 | 41 | I/O/T | GPIO45 |
| IO46 | 44 | I/O/T | GPIO46 |
| EN | 45 | I | High: on, enables the chip. Low: off, the chip powers off. Note: Do not leave the EN pin floating. |
ESP32-S2-MINI-2 Electrical Characteristics
Table 9: 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 2 | High-level output voltage | 0.8 × VDD 1 | - | - | V |
| V OL 2 | Low-level output voltage | - | - | 0.1 × VDD 1 | V |
| I OH | High-level source current (VDD 1 = 3.3 V, V OH >= 2.64 V, PAD_DRIVER = 3) | - | 40 | - | mA |
| I OL | Low-level sink current (VDD 1 = 3.3 V, V OL = 0.495 V, PAD_DRIVER = 3) | - | 28 | - | mA |
| R PU | Internal weak pull-up resistor | - | 45 | - | k Ω |
| R PD | Internal weak pull-down resistor | - | 45 | - | k Ω |
| V IH _ nRST | Chip reset release voltage (EN voltage is within the specified range) | 0.75 × VDD 1 | - | VDD 1 + 0.3 | V |
Cont'd on next page
Table 9 - cont'd from previous page
| Symbol | Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| V IL _ nRST | Chip reset voltage (EN voltage is within the specified range) | -0.3 | - | 0.25 × VDD 1 | V |
ESP32-S2-MINI-2 Absolute Maximum Ratings
Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Table 7: Absolute Maximum Ratings
| Symbol | Parameter | Min | Max | Unit |
|---|---|---|---|---|
| VDD33 | Power supply voltage | -0.3 | 3.6 | V |
| T STORE | Storage temperature | -40 | 105 | °C |
ESP32-S2-MINI-2 Recommended Operating Conditions
Table 8: Recommended Operating Conditions
| Symbol | Parameter | Min Typ | Max | Unit | ||
|---|---|---|---|---|---|---|
| VDD33 | Power supply voltage | Power supply voltage | 3 | 3.3 | 3.6 | V |
| I VDD | Current delivered by external power supply | Current delivered by external power supply | 0.5 | - | - | A |
| T A | Operating ambient temperature | 85 °C version 105 °C version | -40 | - | 85 105 | °C |
ESP32-S2-MINI-2 Package Information
Figure 10: ESP32S3MINI1 Recommended PCB Land Pattern
Figure 10: ESP32S3MINI1 Recommended PCB Land Pattern
Figure 11: ESP32S3MINI1U Recommended PCB Land Pattern
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| ESP32 | Espressif Systems | ESP32-WROOM-32E (18.0 x 25.5 x 3.1 mm) |
| ESP32-S | Espressif Systems | — |
| ESP32-S2FH4 | Espressif Systems | QFN-56-EP(7x7) |
| ESP32-S3 | Espressif Systems | 56-VFQFN Exposed Pad |
| ESP32-S3-MINI | Espressif Systems | — |
| ESP32-S3-MINI-1 | Espressif Systems | Module (15.4 x 20.5 x 2.4 mm) |
| ESP32-S3-MINI-1-H4R2 | Espressif Systems | Module (15.4 x 20.5 x 2.4 mm) |
| ESP32-S3-MINI-1-N4R2 | Espressif Systems | 65-SMD Module |
| ESP32-S3-MINI-1-N8 | Espressif Systems | 41-SMD Module |
| ESP32-S3-MINI-1U | Espressif Systems | — |
| ESP32-S3-MINI-1U-H4R2 | Espressif Systems | Module (15.4 x 15.4 x 2.4 mm) |
| ESP32-S3-MINI-1U-N4R2 | Espressif Systems | Module (15.4 x 15.4 x 2.4 mm) |
| ESP32-S3-MINI-1U-N8 | Espressif Systems | 65-SMD Module |
| ESP32-S3FN8 | Espressif Systems | 56-VFQFN Exposed Pad |
| ESP32-S3R2 | Espressif Systems | QFN56 |
| ESP32-S3R8 | Espressif Systems | 56-VFQFN Exposed Pad |
| ESP32-S3R8V | Espressif Systems | QFN56 |
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All RF / Wireless datasheetsAll Espressif Systems datasheets (86)
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