ESP32 LCSC Part Verification Issues

flux

I found several correctness issues.
Issues found
  1. MPN / LCSC mismatch
    • Project appears to identify the part as ESP32-S3-WROOM-1-N8R2.
    • But the datasheet/LCSC URL points to C2913198, which is ESP32-S3-WROOM-1-N8.
    • Correct mapping:
      • ESP32-S3-WROOM-1-N8 → LCSC C2913198, 8 MB flash, no PSRAM.
      • ESP32-S3-WROOM-1-N8R2 → LCSC C2913204, 8 MB flash, 2 MB PSRAM.
  2. Symbol pin count is wrong
    • Datasheet defines 41 module pins:
      • Pins 1–40
      • Pin 41 = EPAD / GND
    • Project symbol has 49 pins, with pins 40–49 all marked GND.
    • Pins 42–49 do not exist for ESP32-S3-WROOM-1 and should be removed.
  3. Footprint / pad mapping likely wrong
    • Intended mapping should be:
      • Pin 40 = GND
      • Pin 41 = EPAD / GND
    • Current project appears to map 40–49 as GND, which suggests the footprint may have extra nonexistent GND pads or the symbol-footprint mapping is incorrect.
    • Recommended fix: revise the footprint to exactly match the Espressif recommended land pattern: pads 1–40 plus EPAD pad 41.
  4. Electrical pin metadata is incomplete
    • Most GPIO pins are marked Unspecified.
    • Datasheet defines them as I/O/T.
    • Recommended pin typing:
      • 3V3: Power In
      • GND, EPAD: Ground
      • EN: Input
      • GPIO/UART pins: Bidirectional / I/O where supported
    • Add documentation notes for strapping pins:
      • IO0, IO45, IO46
      • EN must not be left floating.
  5. Documentation error: N8 vs N8R2
    • If this part project is intended to be N8R2, update all fields and docs to C2913204 / N8R2.
    • If it is intended to be C2913198, change MPN/name to ESP32-S3-WROOM-1-N8 and remove any PSRAM-related metadata.
Recommended fixes
  • Decide target variant:
    • Use ESP32-S3-WROOM-1-N8 / C2913198 if no PSRAM.
    • Use ESP32-S3-WROOM-1-N8R2 / C2913204 if 2 MB PSRAM is required.
  • Replace the symbol pin list with the datasheet’s 41-pin table.
  • Replace or correct footprint pad mapping to 1–40 + EPAD 41.
  • Remove nonexistent symbol/footprint pins 42–49.
  • Set GPIO electrical types to bidirectional/I/O instead of unspecified.
  • Add key metadata:
    • Manufacturer: Espressif
    • Supply voltage: 3.0–3.6 V, nominal 3.3 V
    • Recommended external supply capability: ≥500 mA
    • Operating temp: –40 to 85 °C for these variants
    • Package: SMD, 18.0 × 25.5 × 3.1 mm
    • RF: 2.4 GHz Wi-Fi + Bluetooth LE, PCB antenna
I could not run the project’s native review checks because the active project context was not available to those checks, but the datasheet and indexed project data are enough to identify the major part-definition errors above.
Fix N8 part
Switch to N8R2
Rebuild component
Run part review
Check land pattern
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ESP32-S3-WROOM-1-N8

ESP32-S3-WROOM-1-N8 thumbnail
ESP32-S3-WROOM-1-N8 is a high-performance Wi-Fi and Bluetooth Low Energy (BLE) module from Espressif Systems. It is built around the ESP32-S3 SoC, featuring a dual-core Xtensa LX7 processor, integrated 2.4 GHz Wi-Fi and Bluetooth 5 LE connectivity, 8 MB SPI flash memory, and a PCB antenna. The module is optimized for AIoT, edge computing, human-machine interfaces, smart devices, and industrial IoT applications.
Key Features Dual-core Xtensa® LX7 CPU running up to 240 MHz for high-performance embedded applications. 8 MB onboard SPI Flash (N8 variant) for firmware and data storage. 2.4 GHz Wi-Fi (802.11 b/g/n) with data rates up to 150 Mbps. Bluetooth 5 LE support including: Long Range mode 2 Mbps PHY Bluetooth Mesh Extended Advertising AI acceleration support through ESP32-S3 vector instructions for machine learning and signal-processing workloads. USB 1.1 OTG and USB Serial/JTAG integrated, simplifying debugging and USB device applications. Up to 45 GPIOs with extensive peripheral support: SPI I²C I²S UART PWM ADC Touch Sensors TWAI® (CAN-compatible) Camera Interface LCD Interface SDIO Host MCPWM Integrated 40 MHz crystal oscillator, RF matching circuitry, and PCB antenna for reduced external component count. Operating voltage range: 3.0 V to 3.6 V. Compact surface-mount module suitable for space-constrained designs. Typical Applications Smart home and home automation devices HMI displays and touchscreen products Voice recognition and audio processing Edge AI and machine learning applications Industrial IoT gateways and sensors Video streaming and camera systems USB-connected embedded devices Smart agriculture and healthcare equipment
N8 specifically indicates 8 MB Flash and no PSRAM, making it a good choice for applications requiring substantial program storage but not large external RAM.
#RF-transceiver #Module #ESP32

Properties

ESPRESSIF(乐鑫)

U

ESP32-S3-WROOM-1-N8

C2913198

WIFIM-SMD_ESP32-S3-WROOM-1-N8

WiFi Modules

Extended Part

lcsc.com/datasheet/C2913198.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VXVF1QRlBZUDsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D

creativecommons.org/licenses/by/4.0/

parametric-v1

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