[Skip to content](#main-content) [esp.run](/) [Compare](/)[Modules](/modules/)[Dev boards](/devkits/) [EN](/series/esp32-c3/)[中文](/zh/series/esp32-c3/)[日本語](/ja/series/esp32-c3/)[한국어](/ko/series/esp32-c3/) [← All official models](/) # ESP32-C3 Cost-effective secure IoT A 160 MHz RISC-V MCU with Wi-Fi, Bluetooth LE and native USB Serial/JTAG. AvailableVerified 2026-10-11 ## Best for - Secure, cost-sensitive Wi-Fi and BLE devices ## Avoid for - Thread, USB OTG or demanding HMI workloads ## CPU & memory Architecture RISC-V Core(s) 1 Maximum clock 160 MHz On-chip SRAM 400 KB ROM 384 KB Flash External or in-package by part PSRAM Not confirmed Packages QFN32 5×5 mm ## Wireless Wi-Fi 2.4 GHz Wi-Fi 4 Wi-Fi max rate 150 Mbps Bluetooth Bluetooth 5 LE IEEE 802.15.4 No ## Interfaces USB OTG No USB Serial/JTAG Yes Ethernet MAC No Camera No Display No SD/MMC No Maximum GPIO 22 ## Security Secure boot Yes Flash encryption Yes Crypto accelerators AES-128/256 · SHA · RSA · HMAC · DS · RNG TEE / APM No ## Analog & power ADC channels 6 ADC resolution 12-bit Touch sensing No Touch channels None Supply voltage 2.7–3.6 V ULP core None Deep-sleep current 5 µA ## Lifecycle & timing Announced Not confirmed Mass production Not confirmed NRND Not confirmed EOL Not confirmed ## Official modules Every official ESP32 base module, grouped by series. Status follows the ordering codes; "Mixed" means they differ. Module Status Form factor Antenna Flash PSRAM ESP32-C3-MINI-1 Available MINI PCB Not confirmed Not confirmed ESP32-C3-MINI-1U Available MINI Connector Not confirmed Not confirmed ESP32-C3-WROOM-02 Available WROOM PCB Up to 16 MB Not confirmed ESP32-C3-WROOM-02U Available WROOM Connector Up to 16 MB Not confirmed ESP8685-WROOM-01 Available WROOM PCB Not confirmed Not confirmed ESP8685-WROOM-03 Available WROOM PCB Not confirmed Not confirmed ESP8685-WROOM-04 Available WROOM PCB Not confirmed Not confirmed ESP8685-WROOM-05 Available WROOM PCB Not confirmed Not confirmed ESP8685-WROOM-06 Available WROOM PCB Not confirmed Not confirmed ESP8685-WROOM-07 Available WROOM PCB Not confirmed Not confirmed ## Official development boards Official Espressif development boards, including discontinued boards from the per-series EOL lists. Board Status Board type ESP32-C3-DevKitM-1 Available DevKitM ESP32-C3-DevKit-RUST-2 Available Other ESP32-C3-AWS-ExpressLink-DevKit-2 Available Other ESP32-C3-LCDkit Available Other ESP32-C3-Lyra Available Other Where to buy ## Official page and distributor search These are search and official pages, not live stock or price quotes. Confirm the exact ordering code with the seller. [Espressif product page ↗](https://www.espressif.com/en/products/socs/esp32-c3)[Official datasheet ↗](https://documentation.espressif.com/esp32-c3_datasheet_en.html)[Authorized distributors ↗](https://www.espressif.com/en/contact-us/distributors)[Search LCSC ↗](https://www.lcsc.com/search?q=ESP32-C3)[Search Digi-Key ↗](https://www.digikey.com/en/products/result?keywords=ESP32-C3)[Search Mouser ↗](https://www.mouser.com/c/?q=ESP32-C3) ## Official chip ordering codes Each row is an official SoC or SiP. Buy links search that exact part name. Part Status Package Flash PSRAM Buy ESP32-C3 Available QFN32 See datasheet None confirmed [Search LCSC](https://www.lcsc.com/search?q=ESP32-C3)[Search Digi-Key](https://www.digikey.com/en/products/result?keywords=ESP32-C3)[Search Mouser](https://www.mouser.com/c/?q=ESP32-C3) ESP32-C3FH4 Available QFN32 See datasheet None confirmed [Search LCSC](https://www.lcsc.com/search?q=ESP32-C3FH4)[Search Digi-Key](https://www.digikey.com/en/products/result?keywords=ESP32-C3FH4)[Search Mouser](https://www.mouser.com/c/?q=ESP32-C3FH4) ESP32-C3FH4X Available QFN32 with in-package flash See datasheet None confirmed [Search LCSC](https://www.lcsc.com/search?q=ESP32-C3FH4X)[Search Digi-Key](https://www.digikey.com/en/products/result?keywords=ESP32-C3FH4X)[Search Mouser](https://www.mouser.com/c/?q=ESP32-C3FH4X) ESP32-C3FH8X Available QFN32 See datasheet None confirmed [Search LCSC](https://www.lcsc.com/search?q=ESP32-C3FH8X)[Search Digi-Key](https://www.digikey.com/en/products/result?keywords=ESP32-C3FH8X)[Search Mouser](https://www.mouser.com/c/?q=ESP32-C3FH8X) ESP8685H4 Available QFN32 See datasheet None confirmed [Search LCSC](https://www.lcsc.com/search?q=ESP8685H4)[Search Digi-Key](https://www.digikey.com/en/products/result?keywords=ESP8685H4)[Search Mouser](https://www.mouser.com/c/?q=ESP8685H4) ESP32-C3FH4AZ NRND QFN32 with in-package flash See datasheet None confirmed [Search LCSC](https://www.lcsc.com/search?q=ESP32-C3FH4AZ)[Search Digi-Key](https://www.digikey.com/en/products/result?keywords=ESP32-C3FH4AZ)[Search Mouser](https://www.mouser.com/c/?q=ESP32-C3FH4AZ) ESP32-C3FN4 EOL QFN32 See datasheet None confirmed [Search LCSC](https://www.lcsc.com/search?q=ESP32-C3FN4)[Search Digi-Key](https://www.digikey.com/en/products/result?keywords=ESP32-C3FN4)[Search Mouser](https://www.mouser.com/c/?q=ESP32-C3FN4) Chip package ## Chip pin map Package top view from the official series datasheet. Filter pins or open the accessible table. This is a reference map, not an electrical simulator. QFN32QFN32 with in-package flash All pinsPower pinsGPIO pinsAnalog pinsMemory pinsJTAG pinsUART pins Pin mapPin list QFN32, top viewESP32-C3 Series Datasheet v2.4QFN32LNA\_INVDD3P3VDD3P3XTAL\_32K\_PXTAL\_32K\_NGPIO2CHIP\_ENGPIO3MTMSMTDIVDD3P3\_RTCMTCKMTDOGPIO8GPIO9GPIO10VDD3P3\_CPUVDD\_SPISPIHDSPIWPSPICS0SPICLKSPIDSPIQGPIO18GPIO19U0RXDU0TXDXTAL\_NXTAL\_PVDDAVDDAGND Pin details Select a pin to inspect its functions and warnings. Complete accessible pin table Physical pin Label Functions Direction Warnings 1 LNA\_IN LNA\_IN Input — 2 VDD3P3 VDD3P3 Power — 3 VDD3P3 VDD3P3 Power — 4 XTAL\_32K\_P XTAL\_32K\_P Input — 5 XTAL\_32K\_N XTAL\_32K\_N Input — 6 GPIO2 GPIO2, GPIO Matrix Bidirectional — 7 CHIP\_EN CHIP\_EN Input Enable pin. Do not leave it floating; follow the datasheet power-up circuit. 8 GPIO3 GPIO3, GPIO Matrix Bidirectional — 9 MTMS MTMS Bidirectional JTAG and boot-related function. Verify the part-specific reset configuration. 10 MTDI MTDI Bidirectional JTAG and boot-related function. Verify the part-specific reset configuration. 11 VDD3P3\_RTC VDD3P3\_RTC Power — 12 MTCK MTCK Bidirectional JTAG and boot-related function. Verify the part-specific reset configuration. 13 MTDO MTDO Bidirectional JTAG and boot-related function. Verify the part-specific reset configuration. 14 GPIO8 GPIO8, GPIO Matrix Bidirectional — 15 GPIO9 GPIO9, GPIO Matrix Bidirectional — 16 GPIO10 GPIO10, GPIO Matrix Bidirectional — 17 VDD3P3\_CPU VDD3P3\_CPU Power — 18 VDD\_SPI VDD\_SPI Power — 19 SPIHD SPIHD Bidirectional This signal may be reserved by in-package flash or PSRAM on some ordering codes. 20 SPIWP SPIWP Bidirectional This signal may be reserved by in-package flash or PSRAM on some ordering codes. 21 SPICS0 SPICS0 Bidirectional This signal may be reserved by in-package flash or PSRAM on some ordering codes. 22 SPICLK SPICLK Bidirectional This signal may be reserved by in-package flash or PSRAM on some ordering codes. 23 SPID SPID Bidirectional This signal may be reserved by in-package flash or PSRAM on some ordering codes. 24 SPIQ SPIQ Bidirectional This signal may be reserved by in-package flash or PSRAM on some ordering codes. 25 GPIO18 GPIO18, GPIO Matrix Bidirectional — 26 GPIO19 GPIO19, GPIO Matrix Bidirectional — 27 U0RXD U0RXD Bidirectional — 28 U0TXD U0TXD Bidirectional — 29 XTAL\_N XTAL\_N Input — 30 XTAL\_P XTAL\_P Input — 31 VDDA VDDA Power — 32 VDDA VDDA Power — 33 GND GND Power — ## Official evidence [Official source: ESP32-C3 product page ↗](https://www.espressif.com/en/products/socs/esp32-c3)[Datasheet: ESP32-C3 Series Datasheet ↗](https://documentation.espressif.com/esp32-c3_datasheet_en.html) esp.run is an independent guide and is not affiliated with Espressif Systems. Independent guideData verified 2026-10-11 [Official sources ↗](https://www.espressif.com/en/products/socs)