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Module Overview
ESP32-S2-MINI-1 comes with a PCB antenna (ANT). ESP32-S2-MINI-1U comes with an external antenna
connector (CONN). A wide selection of module variants are available for customers as shown in Table 1 and
Table 2.
Table 1: ESP32S2MINI1 (ANT) Series Comparison1
Ambient Temp.2
(°C)
Size3
(mm)
Ordering Code
Flash
PSRAM
ESP32-S2-MINI-1-N4
ESP32-S2-MINI-1-H4
ESP32-S2-MINI-1-N4R2
1
—
—
–40 ∼ 85
–40 ∼ 105
–40 ∼ 85
4 MB (Quad SPI)4
15.4 × 20.0 × 2.4
2 MB (Quad SPI)5
This table shares the same notes presented in Table 2 below.
Table 2: ESP32S2MINI1U (CONN) Series Comparison
Ambient Temp.2
Size3
(mm)
Ordering Code
Flash
PSRAM
(°C)
ESP32-S2-MINI-1U-N4
ESP32-S2-MINI-1U-H4
ESP32-S2-MINI-1U-N4R2
2
—
—
–40 ∼ 85
–40 ∼ 105
–40 ∼ 85
4 MB (Quad SPI)4
15.4 × 15.4 × 2.4
2 MB (Quad SPI)5
Ambient temperature specifies the recommended temperature range of the environment immediately out-
side the Espressif module.
3
4
5
For details, refer to Section 7.1 Physical Dimensions.
The flash is integrated in the chip’s package.
The PSRAM is integrated in the chip’s package.
In this datasheet unless otherwise stated, ESP32-S2-MINI-1 refers to ESP32-S2-MINI-1-N4,
ESP32-S2-MINI-1-H4 and ESP32-S2-MINI-1-N4R2, whereas ESP32-S2-MINI-1U refers to
ESP32-S2-MINI-1U-N4, ESP32-S2-MINI-1U-H4 and ESP32-S2-MINI-1U-N4R2.
The ESP32-S2FH4 chip and the ESP32-S2FN4R2 chip at the core of the two modules fall into the same
category, namely ESP32-S2 chip series (chip revision v0.0). ESP32-S2 series of chips has an Xtensa® 32-bit
LX7 CPU that operates at up to 240 MHz. It has a low-power co-processor that can be used instead of the CPU
to save power while performing tasks that do not require much computing power, such as monitoring of
peripherals.
ESP32-S2 series integrates a rich set of peripherals, ranging from SPI, I2S, UART, I2C, LED PWM, TWAI®, LCD,
Camera interface, ADC, DAC, touch sensor, temperature sensor, as well as up to 43 GPIOs. It also includes a
full-speed USB On-The-Go (OTG) interface to enable USB communication.
The ESP32-S2FH4 chip and the ESP32-S2FN4R2 chip vary in:
• temperature of embedded flash
• whether a PSRAM is embedded
For more information on ESP32-S2 series of SoCs, please refer to ESP32-S2 Series Datasheet and ESP32-S2
Series SoC Errata.
Information about ESP-IDF release that supports a specific chip revision is provided in ESP Product Selector.
Espressif Systems
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ESP32-S2-MINI-1 & MINI-1U Datasheet v1.3
(Chip Revision v0.0)
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