BASE DEVICE
ESP32-S3
Dual-core Xtensa wireless microcontroller with Wi-Fi and Bluetooth LE.
- CPU
- Dual-core Xtensa LX7
- CPU frequency
- 240 MHz
- Internal SRAM
- 512 KB
1 ordering codeESP32-S3 →
Specifications & documents →Espressif / 乐鑫 / TECHNICAL REFERENCE
ESP32-C3FH4X
ESP32-C3 RISC-V wireless SoC with in-package flash, distinct from ESP32-C3 radio modules.
FPGA.io Part Number FIO-E9F663D7BB9AB923Internal catalogue reference · manufacturer MPN remains unchanged
Technical reference · Documented ordering reference · Checked 2026-09-28
DOCUMENTED FACTS
Technical parameters
Values apply to the device and conditions identified in each source. Family maxima, package limits and full ordering-code specifications must not be treated as interchangeable.
| Parameter | Documented value | Source & conditions |
|---|---|---|
| CPU | Single 32-bit RISC-V core, up to 160 MHz | ESP32-C3FH4X official reference ↗Features and Table 1-1: ESP32-C3 Series Comparison |
| SRAM | 400 KB, including 16 KB used for cache | ESP32-C3FH4X official reference ↗Features and Table 1-1: ESP32-C3 Series Comparison |
| In-package flash | 4 MB | ESP32-C3FH4X official reference ↗Features and Table 1-1: ESP32-C3 Series Comparison |
| Wi-Fi | 2.4 GHz IEEE 802.11b/g/n | ESP32-C3FH4X official reference ↗Features and Table 1-1: ESP32-C3 Series Comparison |
| Bluetooth | Bluetooth 5 LE | ESP32-C3FH4X official reference ↗Features and Table 1-1: ESP32-C3 Series Comparison |
| Package | QFN32, 5 × 5 mm | ESP32-C3FH4X official reference ↗Features and Table 1-1: ESP32-C3 Series Comparison |
Official documents
ESP32-C3FH4X official referenceFeatures and Table 1-1: ESP32-C3 Series ComparisonWeb ↗Ordering and board constraints
This ordering reference contains the documented facts shown above; it is separate from the fully reviewed FPGA ordering-number catalogue.
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- Review pinout, electrical conditions and the exact document revision before PCB release.
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COMPLETE PART IDENTITIES
Ordering numbers for ESP32-C3FH4X
These references belong to this device. Evidence labels distinguish reviewed specifications, public listings and manufacturer coding examples. Counts describe this site’s documented coverage, not stock or all configurations offered by the manufacturer.
| Full ordering number | Package | Speed / temperature | Evidence | Next step |
|---|---|---|---|---|
| ESP32-C3FH4X | QFN32, 5 × 5 mm | Not verifiedNot verified | Documented ordering referenceView source ↗ | Device details →Request quotation |
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Not verified means that parameter has not been independently established for this exact code. A code example is not confirmation that a configuration can be ordered today.
Other devices in this product line
Compare the documented requirements; inclusion in the same series does not establish interchangeability.