component
ESP32-S3-WROOM-1U-N8R8
Public Made by Adomby adom
Espressif Systems WiFi Modules, ESP32-S3-WROOM-1U. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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ESP32-S3-WROOM-1U-N8R8
Espressif Systems · WiFi Modules · ESP32-S3-WROOM-1U
ESP32-S3-WROOM-1U-N8R8 from Espressif Systems, in a ESP32-S3-WROOM-1U. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground pin of the module. |
| 2 | 3V3 | power_in | Module power supply pin; the datasheet's recommended supply is 3.0-3.6 V (see Table 6-2). |
| 3 | EN | input | Chip enable: high turns the chip on and low powers it off, and the pin must not be left floating. |
| 4 | IO4 | bidirectional | GPIO4 (I/O/T) with alternate functions RTC_GPIO4, TOUCH4 and ADC1_CH3. |
| 5 | IO5 | bidirectional | GPIO5 (I/O/T) with alternate functions RTC_GPIO5, TOUCH5 and ADC1_CH4. |
| 6 | IO6 | bidirectional | GPIO6 (I/O/T) with alternate functions RTC_GPIO6, TOUCH6 and ADC1_CH5. |
| 7 | IO7 | bidirectional | GPIO7 (I/O/T) with alternate functions RTC_GPIO7, TOUCH7 and ADC1_CH6. |
| 8 | IO15 | bidirectional | GPIO15 (I/O/T) with alternate functions RTC_GPIO15, U0RTS, ADC2_CH4 and XTAL_32K_P. |
| 9 | IO16 | bidirectional | GPIO16 (I/O/T) with alternate functions RTC_GPIO16, U0CTS, ADC2_CH5 and XTAL_32K_N. |
| 10 | IO17 | bidirectional | GPIO17 (I/O/T) with alternate functions RTC_GPIO17, U1TXD and ADC2_CH6. |
| 11 | IO18 | bidirectional | GPIO18 (I/O/T) with alternate functions RTC_GPIO18, U1RXD, ADC2_CH7 and CLK_OUT3. |
| 12 | IO8 | bidirectional | GPIO8 (I/O/T) with alternate functions RTC_GPIO8, TOUCH8, ADC1_CH7 and SUBSPICS1. |
| 13 | IO19 | bidirectional | GPIO19 (I/O/T) with alternate functions RTC_GPIO19, U1RTS, ADC2_CH8, CLK_OUT2 and USB D-. |
| 14 | IO20 | bidirectional | GPIO20 (I/O/T) with alternate functions RTC_GPIO20, U1CTS, ADC2_CH9, CLK_OUT1 and USB D+. |
| 15 | IO3 | bidirectional | GPIO3 (I/O/T) with alternate functions RTC_GPIO3, TOUCH3 and ADC1_CH2; it is a strapping pin for JTAG signal source selection. |
| 16 | IO46 | bidirectional | GPIO46 (I/O/T); it is a strapping pin for chip boot mode and ROM message printing. |
| 17 | IO9 | bidirectional | GPIO9 (I/O/T) with alternate functions RTC_GPIO9, TOUCH9, ADC1_CH8, FSPIHD and SUBSPIHD. |
| 18 | IO10 | bidirectional | GPIO10 (I/O/T) with alternate functions RTC_GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 and SUBSPICS0. |
| 19 | IO11 | bidirectional | GPIO11 (I/O/T) with alternate functions RTC_GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 and SUBSPID. |
| 20 | IO12 | bidirectional | GPIO12 (I/O/T) with alternate functions RTC_GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 and SUBSPICLK. |
| 21 | IO13 | bidirectional | GPIO13 (I/O/T) with alternate functions RTC_GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 and SUBSPIQ. |
| 22 | IO14 | bidirectional | GPIO14 (I/O/T) with alternate functions RTC_GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS and SUBSPIWP. |
| 23 | IO21 | bidirectional | GPIO21 (I/O/T) with alternate function RTC_GPIO21. |
| 24 | IO47 | bidirectional | GPIO47 (I/O/T) with alternate functions SPICLK_P_DIFF and SUBSPICLK_P_DIFF; on modules with ESP32-S3R16V its working voltage is 1.8 V. |
| 25 | IO48 | bidirectional | GPIO48 (I/O/T) with alternate functions SPICLK_N_DIFF and SUBSPICLK_N_DIFF; on modules with ESP32-S3R16V its working voltage is 1.8 V. |
| 26 | IO45 | bidirectional | GPIO45 (I/O/T); it is a strapping pin for VDD_SPI voltage selection (default weak pull-down). |
| 27 | IO0 | bidirectional | GPIO0 (I/O/T) with alternate function RTC_GPIO0; it is a strapping pin for chip boot mode (default weak pull-up). |
| 28 | IO35 | bidirectional | GPIO35 (I/O/T) with alternate functions SPIIO6, FSPID and SUBSPID; default function is set by eFuse, and on modules with Octal SPI PSRAM it is not available for other uses. |
| 29 | IO36 | bidirectional | GPIO36 (I/O/T) with alternate functions SPIIO7, FSPICLK and SUBSPICLK; default function is set by eFuse, and on modules with Octal SPI PSRAM it is not available for other uses. |
| 30 | IO37 | bidirectional | GPIO37 (I/O/T) with alternate functions SPIDQS, FSPIQ and SUBSPIQ; default function is set by eFuse, and on modules with Octal SPI PSRAM it is not available for other uses. |
| 31 | IO38 | bidirectional | GPIO38 (I/O/T) with alternate functions FSPIWP and SUBSPIWP. |
| 32 | IO39 | bidirectional | GPIO39 (I/O/T) with alternate functions MTCK, CLK_OUT3 and SUBSPICS1 (JTAG clock by default). |
| 33 | IO40 | bidirectional | GPIO40 (I/O/T) with alternate functions MTDO and CLK_OUT2 (JTAG data out by default). |
| 34 | IO41 | bidirectional | GPIO41 (I/O/T) with alternate functions MTDI and CLK_OUT1 (JTAG data in by default). |
| 35 | IO42 | bidirectional | GPIO42 (I/O/T) with alternate function MTMS (JTAG mode select by default). |
| 36 | RXD0 | bidirectional | GPIO44 (I/O/T) used as UART0 receive U0RXD by default, also CLK_OUT2. |
| 37 | TXD0 | bidirectional | GPIO43 (I/O/T) used as UART0 transmit U0TXD by default, also CLK_OUT1. |
| 38 | IO2 | bidirectional | GPIO2 (I/O/T) with alternate functions RTC_GPIO2, TOUCH2 and ADC1_CH1. |
| 39 | IO1 | bidirectional | GPIO1 (I/O/T) with alternate functions RTC_GPIO1, TOUCH1 and ADC1_CH0. |
| 40 | GND | power_in | Ground pin of the module. |
| 41 | EPAD | power_in | Exposed ground pad; soldering it to the base board ground is optional and improves thermal performance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Espressif Systems |
| Package | ESP32-S3-WROOM-1U |
| Category | IoT/Communication Modules |
| Pins | 41 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power supply voltage (recommended operating) | VDD33 | 3 | 3.3 | 3.6 | V | 27 | |
| Power supply voltage (absolute maximum) | VDD33 | -0.3 | 3.6 | V | 27 | ||
| Storage temperature | TSTORE | -40 | 105 | °C | 27 | ||
| Operating ambient temperature (65 °C version) | TA | -40 | 65 | °C | 65 °C version | 27 | |
| Current delivered by external power supply | IVDD | 0.5 | A | 27 | |||
| Low-level input voltage | VIL | -0.3 | V | 3.3 V, 25 °C | 27 | ||
| High-level input current | IIH | 50 | nA | 3.3 V, 25 °C | 27 | ||
| Low-level input current | IIL | 50 | nA | 3.3 V, 25 °C | 27 | ||
| Power supply voltage (1.8 V PSRAM) | VCC | 1.62 | 1.8 | 1.98 | V | 31 | |
| Power supply voltage (3.3 V PSRAM) | VCC | 2.7 | 3.3 | 3.6 | V | 31 | |
| Maximum clock frequency (PSRAM) | FC | 80 | MHz | 31 | |||
| RF transmit power range (Bluetooth LE) | -24 | 20 | dBm | 34 | |||
| Center frequency range of operating channel (Wi-Fi) | 2412 | 2484 | MHz | 32 | |||
| Center frequency range of operating channel (Bluetooth LE) | 2402 | 2480 | MHz | 34 | |||
| Pin capacitance | CIN | 2 | pF | 3.3 V, 25 °C | 27 | ||
| High-level source current | IOH | 40 | mA | VDD1 = 3.3 V, VOH >= 2.64 V, PAD_DRIVER = 3 | 27 | ||
| Low-level sink current | IOL | 28 | mA | VDD1 = 3.3 V, VOL = 0.495 V, PAD_DRIVER = 3 | 27 | ||
| Internal weak pull-up resistor | RPU | 45 | kΩ | 3.3 V, 25 °C | 27 | ||
| Internal weak pull-down resistor | RPD | 45 | kΩ | 3.3 V, 25 °C | 27 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Solder: Sn-Ag-Cu (SAC305) lead-free solder Temperature (°C) | 47 |
CAD (KiCad official)
- Symbol:
ESP32-S3-WROOM-1U-N8R8 - Footprint:
PCM_Espressif:ESP32-S3-WROOM-1U - 3D model: ESP32-S3-WROOM-1U (KiCad packages3D, STEP)
- 3D model files:
esp32-s3-wroom-1u-n8r8-etched.step/esp32-s3-wroom-1u-n8r8-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esp32-s3-wroom-1u-n8r8.step/esp32-s3-wroom-1u-n8r8.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Espressif Systems datasheet (53 pp, sha256
27d71971da07c280, retrieved 2026-10-28, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# ESP32-S3-WROOM-1U-N8R8
**Espressif Systems** · WiFi Modules · ESP32-S3-WROOM-1U
ESP32-S3-WROOM-1U-N8R8 from Espressif Systems, in a ESP32-S3-WROOM-1U. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground pin of the module. |
| 2 | 3V3 | power_in | Module power supply pin; the datasheet's recommended supply is 3.0-3.6 V (see Table 6-2). |
| 3 | EN | input | Chip enable: high turns the chip on and low powers it off, and the pin must not be left floating. |
| 4 | IO4 | bidirectional | GPIO4 (I/O/T) with alternate functions RTC_GPIO4, TOUCH4 and ADC1_CH3. |
| 5 | IO5 | bidirectional | GPIO5 (I/O/T) with alternate functions RTC_GPIO5, TOUCH5 and ADC1_CH4. |
| 6 | IO6 | bidirectional | GPIO6 (I/O/T) with alternate functions RTC_GPIO6, TOUCH6 and ADC1_CH5. |
| 7 | IO7 | bidirectional | GPIO7 (I/O/T) with alternate functions RTC_GPIO7, TOUCH7 and ADC1_CH6. |
| 8 | IO15 | bidirectional | GPIO15 (I/O/T) with alternate functions RTC_GPIO15, U0RTS, ADC2_CH4 and XTAL_32K_P. |
| 9 | IO16 | bidirectional | GPIO16 (I/O/T) with alternate functions RTC_GPIO16, U0CTS, ADC2_CH5 and XTAL_32K_N. |
| 10 | IO17 | bidirectional | GPIO17 (I/O/T) with alternate functions RTC_GPIO17, U1TXD and ADC2_CH6. |
| 11 | IO18 | bidirectional | GPIO18 (I/O/T) with alternate functions RTC_GPIO18, U1RXD, ADC2_CH7 and CLK_OUT3. |
| 12 | IO8 | bidirectional | GPIO8 (I/O/T) with alternate functions RTC_GPIO8, TOUCH8, ADC1_CH7 and SUBSPICS1. |
| 13 | IO19 | bidirectional | GPIO19 (I/O/T) with alternate functions RTC_GPIO19, U1RTS, ADC2_CH8, CLK_OUT2 and USB D-. |
| 14 | IO20 | bidirectional | GPIO20 (I/O/T) with alternate functions RTC_GPIO20, U1CTS, ADC2_CH9, CLK_OUT1 and USB D+. |
| 15 | IO3 | bidirectional | GPIO3 (I/O/T) with alternate functions RTC_GPIO3, TOUCH3 and ADC1_CH2; it is a strapping pin for JTAG signal source selection. |
| 16 | IO46 | bidirectional | GPIO46 (I/O/T); it is a strapping pin for chip boot mode and ROM message printing. |
| 17 | IO9 | bidirectional | GPIO9 (I/O/T) with alternate functions RTC_GPIO9, TOUCH9, ADC1_CH8, FSPIHD and SUBSPIHD. |
| 18 | IO10 | bidirectional | GPIO10 (I/O/T) with alternate functions RTC_GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 and SUBSPICS0. |
| 19 | IO11 | bidirectional | GPIO11 (I/O/T) with alternate functions RTC_GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 and SUBSPID. |
| 20 | IO12 | bidirectional | GPIO12 (I/O/T) with alternate functions RTC_GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 and SUBSPICLK. |
| 21 | IO13 | bidirectional | GPIO13 (I/O/T) with alternate functions RTC_GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 and SUBSPIQ. |
| 22 | IO14 | bidirectional | GPIO14 (I/O/T) with alternate functions RTC_GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS and SUBSPIWP. |
| 23 | IO21 | bidirectional | GPIO21 (I/O/T) with alternate function RTC_GPIO21. |
| 24 | IO47 | bidirectional | GPIO47 (I/O/T) with alternate functions SPICLK_P_DIFF and SUBSPICLK_P_DIFF; on modules with ESP32-S3R16V its working voltage is 1.8 V. |
| 25 | IO48 | bidirectional | GPIO48 (I/O/T) with alternate functions SPICLK_N_DIFF and SUBSPICLK_N_DIFF; on modules with ESP32-S3R16V its working voltage is 1.8 V. |
| 26 | IO45 | bidirectional | GPIO45 (I/O/T); it is a strapping pin for VDD_SPI voltage selection (default weak pull-down). |
| 27 | IO0 | bidirectional | GPIO0 (I/O/T) with alternate function RTC_GPIO0; it is a strapping pin for chip boot mode (default weak pull-up). |
| 28 | IO35 | bidirectional | GPIO35 (I/O/T) with alternate functions SPIIO6, FSPID and SUBSPID; default function is set by eFuse, and on modules with Octal SPI PSRAM it is not available for other uses. |
| 29 | IO36 | bidirectional | GPIO36 (I/O/T) with alternate functions SPIIO7, FSPICLK and SUBSPICLK; default function is set by eFuse, and on modules with Octal SPI PSRAM it is not available for other uses. |
| 30 | IO37 | bidirectional | GPIO37 (I/O/T) with alternate functions SPIDQS, FSPIQ and SUBSPIQ; default function is set by eFuse, and on modules with Octal SPI PSRAM it is not available for other uses. |
| 31 | IO38 | bidirectional | GPIO38 (I/O/T) with alternate functions FSPIWP and SUBSPIWP. |
| 32 | IO39 | bidirectional | GPIO39 (I/O/T) with alternate functions MTCK, CLK_OUT3 and SUBSPICS1 (JTAG clock by default). |
| 33 | IO40 | bidirectional | GPIO40 (I/O/T) with alternate functions MTDO and CLK_OUT2 (JTAG data out by default). |
| 34 | IO41 | bidirectional | GPIO41 (I/O/T) with alternate functions MTDI and CLK_OUT1 (JTAG data in by default). |
| 35 | IO42 | bidirectional | GPIO42 (I/O/T) with alternate function MTMS (JTAG mode select by default). |
| 36 | RXD0 | bidirectional | GPIO44 (I/O/T) used as UART0 receive U0RXD by default, also CLK_OUT2. |
| 37 | TXD0 | bidirectional | GPIO43 (I/O/T) used as UART0 transmit U0TXD by default, also CLK_OUT1. |
| 38 | IO2 | bidirectional | GPIO2 (I/O/T) with alternate functions RTC_GPIO2, TOUCH2 and ADC1_CH1. |
| 39 | IO1 | bidirectional | GPIO1 (I/O/T) with alternate functions RTC_GPIO1, TOUCH1 and ADC1_CH0. |
| 40 | GND | power_in | Ground pin of the module. |
| 41 | EPAD | power_in | Exposed ground pad; soldering it to the base board ground is optional and improves thermal performance. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Espressif Systems |
| Package | ESP32-S3-WROOM-1U |
| Category | IoT/Communication Modules |
| Pins | 41 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power supply voltage (recommended operating) | VDD33 | 3 | 3.3 | 3.6 | V | | 27 |
| Power supply voltage (absolute maximum) | VDD33 | -0.3 | | 3.6 | V | | 27 |
| Storage temperature | TSTORE | -40 | | 105 | °C | | 27 |
| Operating ambient temperature (65 °C version) | TA | -40 | | 65 | °C | 65 °C version | 27 |
| Current delivered by external power supply | IVDD | 0.5 | | | A | | 27 |
| Low-level input voltage | VIL | -0.3 | | | V | 3.3 V, 25 °C | 27 |
| High-level input current | IIH | | | 50 | nA | 3.3 V, 25 °C | 27 |
| Low-level input current | IIL | | | 50 | nA | 3.3 V, 25 °C | 27 |
| Power supply voltage (1.8 V PSRAM) | VCC | 1.62 | 1.8 | 1.98 | V | | 31 |
| Power supply voltage (3.3 V PSRAM) | VCC | 2.7 | 3.3 | 3.6 | V | | 31 |
| Maximum clock frequency (PSRAM) | FC | 80 | | | MHz | | 31 |
| RF transmit power range (Bluetooth LE) | | -24 | | 20 | dBm | | 34 |
| Center frequency range of operating channel (Wi-Fi) | | 2412 | | 2484 | MHz | | 32 |
| Center frequency range of operating channel (Bluetooth LE) | | 2402 | | 2480 | MHz | | 34 |
| Pin capacitance | CIN | | 2 | | pF | 3.3 V, 25 °C | 27 |
| High-level source current | IOH | | 40 | | mA | VDD1 = 3.3 V, VOH >= 2.64 V, PAD_DRIVER = 3 | 27 |
| Low-level sink current | IOL | | 28 | | mA | VDD1 = 3.3 V, VOL = 0.495 V, PAD_DRIVER = 3 | 27 |
| Internal weak pull-up resistor | RPU | | 45 | | kΩ | 3.3 V, 25 °C | 27 |
| Internal weak pull-down resistor | RPD | | 45 | | kΩ | 3.3 V, 25 °C | 27 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | Solder: Sn-Ag-Cu (SAC305) lead-free solder Temperature (°C) | 47 |
## CAD (KiCad official)
- Symbol: `ESP32-S3-WROOM-1U-N8R8`
- Footprint: `PCM_Espressif:ESP32-S3-WROOM-1U`
- 3D model: ESP32-S3-WROOM-1U (KiCad packages3D, STEP)
- 3D model files: `esp32-s3-wroom-1u-n8r8-etched.step` / `esp32-s3-wroom-1u-n8r8-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esp32-s3-wroom-1u-n8r8.step` / `esp32-s3-wroom-1u-n8r8.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Espressif Systems datasheet](https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf) (53 pp, sha256 `27d71971da07c280`, retrieved 2026-10-28, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/esp32-s3-wroom-1u-n8r8-datasheet.pdf)