# TOON ## Description Production-intent minimal ESP32-S3-FN8 bare-chip development board with native USB-C, protected 5 V input, 3.3 V regulation, external u.FL RF connection, boot/reset controls, and compact GPIO breakout for a future 10–12 mm-wide four-layer PCB. ## Project Details - **Owner:** rfbvvfvffrg - **Created:** 8/25/2026 - **Last Updated:** 8/25/2026 - **Visibility:** Public ## Key Components ### D1 — [USBLC6-2SC6](https://www.flux.ai/vasy_skral/usblc6-2sc6~g1b.md) - Manufacturer Part Number: USBLC6-2SC6 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Protection - Manufacturer Name: STMicroelectronics - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/06/1d/48/9c/6c/20/4a/b2/CD00050750.pdf/files/CD00050750.pdf/jcr:content/translations/en.CD00050750.pdf - LCSC Part Number: C7519 - Symbol Style: parametric-v1 - Role: ESD Protection - Role Details: USB 2.0 D+/D- ESD array at J1 - Functional Group: USB / Protection **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### D2 — [ESD601DPYRQ1](https://www.flux.ai/adrian95/esd601dpyrq1~jxk.md) - Manufacturer Part Number: ESD601DPYRQ1 - Part Type: Diode - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/ds/symlink/esd601-q1.pdf?ts=1731602930370 - Role: Protection - Role Details: 0.3 pF typical bidirectional RF ESD diode from J2 RF_ANT to GND; 0402 X1SON - Functional Group: MCU / Crystal / RF **Pins:** - 1 [pin 1] - 2 [pin 2] ### F1 — [0805L110WR](https://www.flux.ai/adrian95/0805l110wr~h3i.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Littelfuse Inc. - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3b1fa5dc-24aa-4363-b543-edb057c2fffa&filename=littelfuse_ptc_0805l_datasheet.pdf - Part Type: Fuse - Manufacturer Part Number: 0805L110WR - Role: Resettable Fuse - Role Details: USB VBUS protection; 1.1 A hold supports regulator input peak margin - Functional Group: USB / Protection,Regulator / Power **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [USB4105-GF-A](https://www.flux.ai/adrian95/usb4105-gf-a~im9.md) - Part Type: USB C - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: parametric-v1 - Manufacturer Name: GCT - Manufacturer Name: GCT - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/c2c7fba82d64960d510c5688ccda39e92973a3ef64f0758ccd8dce8a07cbda76.pdf - Manufacturer Part Number: USB4105-GF-A - Role: USB-C Receptacle - Role Details: USB 2.0 sink/device-only connector - Functional Group: USB / Protection **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin A1_B12] - GND__1 [pin B1_A12] - SBU1 [pin A8] - SBU2 [pin B8] - SHELL_GND [pin SH1] - SHELL_GND__1 [pin SH2] - SHELL_GND__2 [pin SH3] - SHELL_GND__3 [pin SH4] - VBUS [pin A4_B9] - VBUS__1 [pin B4_A9] ### J2 — [U.FL-R-SMT-1(10)](https://www.flux.ai/jecstronic/upfl-r-smt-110~du.md) - Manufacturer Part Number: U.FL-R-SMT-1(10) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Hirose%20PDFs/EDC3-302540-10.tif.pdf - Part Type: Connector - Manufacturer Name: Hirose Electric Co Ltd - License: https://creativecommons.org/licenses/by/4.0/ - Role: RF Connector - Role Details: 2.4 GHz u.FL antenna port after chip CLC matching network - Functional Group: MCU / Crystal / RF **Pins:** - Center_Contact [pin 2] - Outer_Contact [pin 1] - Outer_Contact [pin 3] ### J3 — [PinSocket_1x20_P1.27mm_Vertical](https://www.flux.ai/vasy_skral/pinsocket1x20p1p27mmvertical~8xh.md) - Manufacturer Part Number: M50-3032042 - Part Type: Connector - Manufacturer Name: Harwin - Role: GPIO Breakout - Role Details: 18 safe GPIOs plus 3V3 and GND in one single row - Functional Group: GPIO Breakout - Connector Pitch: 1.27mm - Connector Positions: 20 - Connector Rows: 1 **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - Pin_17 [pin 17] - Pin_18 [pin 18] - Pin_19 [pin 19] - Pin_2 [pin 2] - Pin_20 [pin 20] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### SW1 — [PTS810SJK250SMTRLFS](https://www.flux.ai/jharwinbarrozo/pts810sjk250smtrlfs~6tl.md) - Manufacturer Name: C&K - Manufacturer Part Number: PTS810SJK250SMTRLFS - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810121650_C-K-PTS810SJK250SMTRLFS_C221896.pdf - Part Type: Switch - LCSC Part Number: C221896 - Role: Reset Button - Role Details: Pulls CHIP_PU low - Functional Group: Reset / Boot **Pins:** - P1 [pin 1] - P3 [pin 3] ### SW2 — [PTS810SJK250SMTRLFS](https://www.flux.ai/jharwinbarrozo/pts810sjk250smtrlfs~6tl.md) - Manufacturer Name: C&K - Manufacturer Part Number: PTS810SJK250SMTRLFS - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810121650_C-K-PTS810SJK250SMTRLFS_C221896.pdf - Part Type: Switch - LCSC Part Number: C221896 - Role: Boot Button - Role Details: Pulls GPIO0 low during reset - Functional Group: Reset / Boot **Pins:** - P1 [pin 1] - P3 [pin 3] ### U1 — [ESP32-S3FN8](https://www.flux.ai/lcsc/esp32-s3fn8~t4ve.md) - Manufacturer Name: ESPRESSIF(乐鑫) - Manufacturer Part Number: ESP32-S3FN8 - LCSC Part Number: C2913196 - Package or Case Code: QFN-56_L7.0-W7.0-P0.40-TL-EP4.0 - JLCPCB Part Class: Extended Part - Role: Microcontroller - Role Details: ESP32-S3FN8 main SoC; 3.3 V rail designed for >=500 mA source capability - Functional Group: MCU / Crystal / RF **Pins:** - CHIP_PU [pin 4] - EP [pin 57] - GPIO0 [pin 5] - GPIO1 [pin 6] - GPIO10 [pin 15] - GPIO11 [pin 16] - GPIO12 [pin 17] - GPIO13 [pin 18] - GPIO14 [pin 19] - GPIO17 [pin 23] - GPIO18 [pin 24] - GPIO19 [pin 25] - GPIO2 [pin 7] - GPIO20 [pin 26] - GPIO21 [pin 27] - GPIO3 [pin 8] - GPIO33 [pin 38] - GPIO34 [pin 39] - GPIO35 [pin 40] - GPIO36 [pin 41] - GPIO37 [pin 42] - GPIO38 [pin 43] - GPIO4 [pin 9] - GPIO45 [pin 51] - GPIO46 [pin 52] - GPIO5 [pin 10] - GPIO6 [pin 11] - GPIO7 [pin 12] - GPIO8 [pin 13] - GPIO9 [pin 14] - LNA_IN [pin 1] - MTCK [pin 44] - MTDI [pin 47] - MTDO [pin 45] - MTMS [pin 48] - SPICLK [pin 33] - SPICLK_N [pin 36] - SPICLK_P [pin 37] - SPICS0 [pin 32] - SPICS1 [pin 28] - SPID [pin 35] - SPIHD [pin 30] - SPIQ [pin 34] - SPIWP [pin 31] - U0RXD [pin 50] - U0TXD [pin 49] - VDD_SPI [pin 29] - VDD3P3 [pin 2] - VDD3P3 [pin 3] - VDD3P3_CPU [pin 46] - VDD3P3_RTC [pin 20] - VDDA [pin 56] - VDDA [pin 55] - XTAL_32K_N [pin 22] - XTAL_32K_P [pin 21] - XTAL_N [pin 53] - XTAL_P [pin 54] ### U2 — [TLV62568DBVR](https://www.flux.ai/lcsc/tlv62568dbvr~6tha.md) - Part Type: DC-DC Converters - Datasheet URL: https://www.ti.com/lit/ds/symlink/tlv62568.pdf - Manufacturer Name: TI(德州仪器) - LCSC Part Number: C163219 - JLCPCB Part Class: Extended Part - Package or Case Code: SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR - Product Info Url: https://lcsc.com/product-detail/DC-DC-Converters_Texas-Instruments-TI-TLV62568DBVR_C163219.html - Manufacturer Part Number: TLV62568DBVR - Role: Buck Regulator - Role Details: 5 V USB input to 3.3 V; sized for 340 mA RF peak plus rail/transient margin, 1 A rated - Functional Group: Regulator / Power **Pins:** - EN [pin 1] - FB [pin 5] - GND [pin 2] - SW [pin 3] - VIN [pin 4] ### Y1 — [CX2016DB40000D0FLJCC](https://www.flux.ai/adrian95/cx2016db40000d0fljcc~k8u.md) - Manufacturer Name: KYOCERA AVX - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: CX2016DB40000D0FLJCC - Part Type: Oscillator - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1139/CX2016DB_Series_Spec.pdf - Role: Crystal - Role Details: ESP32-S3 40 MHz clock, CL=8 pF - Functional Group: MCU / Crystal / RF **Pins:** - GND_1 [pin 2] - GND_2 [pin 4] - HOT_1 [pin 1] - HOT_2 [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/rfbvvfvffrg/toon~50](https://www.flux.ai/rfbvvfvffrg/toon~50).* --- *Generated from [https://www.flux.ai/rfbvvfvffrg/toon~50](https://www.flux.ai/rfbvvfvffrg/toon~50)*