General-purpose 2.4 GHz Wi-Fi and Bluetooth LE module integrates an ESP32-C3FH4 RISC-V single-core SoC with 4 MB in-package Quad SPI flash. The module supports IEEE 802.11b/g/n operation, Bluetooth 5 LE, and data rates up to 150 Mbps for Wi-Fi and 2 Mbps for Bluetooth LE. It provides 15 GPIOs with peripheral support including SPI, UART, I2C, I2S, TWAI, USB Serial/JTAG, ADC, timers, and PWM. The PCB-antenna module operates from a 3.0 V to 3.6 V supply over a -40 °C to 85 °C ambient temperature range and measures 13.2 mm by 16.6 mm by 2.4 mm. The N4 variant is marked not recommended for new designs in the current datasheet.
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| Embedded SoC | ESP32-C3FH4 |
| Processor core | 32-bit RISC-V single-core |
| Maximum CPU frequency | 160MHz |
| Flash memory | 4 Quad SPI, in chip packageMB |
| ROM | 384KB |
| SRAM | 400, including 16 KB cacheKB |
| RTC SRAM | 8KB |
| Wi-Fi standard | IEEE 802.11b/g/n |
| Wi-Fi operating frequency | 2412 to 2484MHz |
| Wi-Fi bandwidth | 20 or 40MHz |
| Maximum Wi-Fi data rate | 150Mbps |
| Bluetooth version | Bluetooth 5 LE, Bluetooth mesh |
| Bluetooth LE data rates | 0.125, 0.5, 1, 2Mbps |
| GPIO count | 15 |
| Antenna | On-board PCB antenna |
| Operating voltage | 3.0 to 3.6V |
| Operating ambient temperature | -40 to 85°C |
| Module dimensions | 13.2 × 16.6 × 2.4mm |
| Chip revision | v0.4 |
| Wi-Fi TX current, 802.11b 1 Mbps at 20.5 dBm | 350 peakmA |
| RoHS | Compliant |
| REACH | Compliant |
Download the complete datasheet for Espressif Systems ESP32-C3-MINI-1N4 to view detailed technical specifications.
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