# INTERCEDE A1 Controller ## Description INTERCEDE A1 controller hardware with protected power rails, dual Ethernet/PoE domains, isolated machine interfaces, secure storage/timekeeping, and three strictly separated GND domains. Schematic audit/build only; PCB layout intentionally deferred. ## Project Details - **Owner:** pinionseal44 - **Created:** 8/20/2026 - **Last Updated:** 8/22/2026 - **Visibility:** Public - **Stars:** 1 ## Key Components ### BT1 — XDCR-2032-603 - Role Details: Non-rechargeable CR2032 holder; positive terminal to DS3231 VBAT and negative terminal to GND; no charging path - Manufacturer Part Number: XDCR-2032-603 - Manufacturer Name: Lian Xin Technology - Functional Group: Memory / RTC / Security - Package or Case Code: SMD - Datasheet URL: https://jlcpcb.com/partdetail/Lian_XinTechnology-XDCR_2032603/C7498148 - Mount: Surface Mount - Role: Energy Storage **Pins:** - - [pin 2] - + [pin 1] ### D1 — [SMBJ13A-13-F](https://www.flux.ai/lcsc/smbj13a-13-f~s9gb.md) - Manufacturer Name: DIODES(美台) - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - LCSC Part Number: C135042 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ13A-13-F_C135042.pdf - JLCPCB Part Class: Extended Part - Part Type: Diode - Functional Group: Power Entry / Local Rails - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ13A-13-F_SMBJ13A-13-F_C135042.html - Manufacturer Part Number: SMBJ13A-13-F - Substitute Manufacturer Part Number: SMBJ13A - Role Details: +12V_IN transient clamp to GND - Role: Protection **Pins:** - A [pin 2] - K [pin 1] ### D2 — [1N5819WS](https://www.flux.ai/lcsc/1n5819ws~uw2f.md) - Functional Group: Debug / Service - Part Type: Diode - LCSC Part Number: C440261 - Manufacturer Part Number: 1N5819WS - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2102241433_PJSEMI-1N5819WS_C440261.pdf - Package or Case Code: SOD-323_L1.8-W1.3-LS2.5-RD - Product Info Url: https://lcsc.com/product-detail/Schottky-Barrier-Diodes-SBD_PJ-Pingjingsemi-1N5819WS_C440261.html - Manufacturer Name: PJSEMI(平晶微) - Role: Protection - Role Details: REVIEW NOTE: chosen standard Schottky clamp orientation: cathode=+5V, anode=TEST_CLAMP_NODE; attach off-sheet test load to TEST_CLAMP_NODE **Pins:** - A [pin 2] - C [pin 1] ### D3 — [SMBJ58A-13-F](https://www.flux.ai/lcsc/smbj58a-13-f~31sj.md) - Manufacturer Name: DIODES(美台) - LCSC Part Number: C135085 - Role Details: 58V standoff, 93.6V clamp TVS across display PoE port - Product Info Url: https://lcsc.com/product-detail/TVS_DIODES_SMBJ58A-13-F_SMBJ58A-13-F_C135085.html - Role: Clamping - JLCPCB Part Class: Extended Part - Functional Group: Downstream Ethernet + PoE - Part Type: Diode - Manufacturer Part Number: SMBJ58A-13-F - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMBJ58A-13-F_C135085.pdf **Pins:** - A [pin 2] - K [pin 1] ### D4 — [MURS320T3G](https://www.flux.ai/jecstronic/murs320t3g~j5y.md) - Package or Case Code: D_SMC - Role: Rectification - Functional Group: Downstream Ethernet + PoE - Part Type: Diode - Max Reverse Voltage: 200V - LCSC Part Number: C54101 - Current Rating: 3A - Diode Type: Rectifier - Datasheet URL: https://www.onsemi.com/pdf/datasheet/murs320t3-d.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: ON Semiconductor - Forward Voltage: 0.875V - Role Details: LM5155 200 V 3 A ultrafast boost rectifier; 35 ns max reverse recovery - Manufacturer Part Number: MURS320T3G **Pins:** - A [pin 2] - K [pin 1] ### F2 — [045101.5MRL](https://www.flux.ai/lcsc/045101p5mrl~qtgo.md) - Manufacturer Part Number: 045101.5MRL - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Littelfuse-045101-5MRL_C185113.pdf - Role: Protection - Product Info Url: https://lcsc.com/product-detail/Surface-Mount-Fuses_Littelfuse_045101-5MRL_125V-1-5A_C185113.html - LCSC Part Number: C185113 - JLCPCB Part Class: Extended Part - Package or Case Code: FUSE-SMD_L6.1-W2.7 - Manufacturer Name: Littelfuse(美国力特) - Functional Group: Downstream Ethernet + PoE - Role Details: 1.5A PSE port fuse; verify final DC voltage rating before layout release - Part Type: Fuses **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [0026013115](https://www.flux.ai/adrian95/0026013115~agx.md) - Connector Rows: 2 - Connector Positions: 4 - Role: Power Input - License: https://creativecommons.org/licenses/by/4.0/ - Connector Gender: Male - Manufacturer Name: Molex - Role Details: Two contacts +12V_IN and two contacts GND; source calls 5566-04A2 - Datasheet URL: https://www.molex.com/pdm_docs/sd/026013108_sd.pdf - Functional Group: Power Entry / Local Rails - Part Type: Connector - Manufacturer Part Number: 26013115 - Connector Pitch: 4.20mm - Connector Type: Headers and Wire Housings **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J2 — [TYPE-C 16PIN 2MD (073)](https://www.flux.ai/silicon-yard/type-c-16pin-2md-073.md) - Manufacturer Name: SHOU HAN - Functional Group: USB / Programming - Datasheet URL: https://www.snapeda.com/parts/TYPE-C%2016PIN%202MD%20(073)/Shouhan/datasheet/ - Symbol Style: parametric-v1 - Role Details: USB 2.0 service port with CC pull-downs - Part Type: Connector - Role: USB Connector - Manufacturer Part Number: TYPE-C 16PIN 2MD (073) **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND_A [pin A1_B12] - GND_B [pin B1_A12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin SH2] - SHIELD [pin SH1] - SHIELD [pin SH3] - SHIELD [pin SH4] - VBUS_A [pin A4_B9] - VBUS_B [pin B4_A9] ### J3 — [KH-RJ45-58-8P8C](https://www.flux.ai/lcsc/kh-rj45-58-8p8c~y9qc.md) - Package or Case Code: RJ45-TH_KH-RJ45-58-8P8C - Manufacturer Part Number: KH-RJ45-58-8P8C - JLCPCB Part Class: Extended Part - Functional Group: LAN Ethernet - Role Details: All 8 contacts available; shield to CHASSIS - Role: Ethernet Connector - Datasheet URL: https://www.lcsc.com/datasheet/C2683360.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=FlVZVVIFFgBeVAVTT1BXUgFfEwJeVlBfEwVcAlMHRAQxVlNeR1RfX1dXT1hYVDsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Part Type: Connector - Manufacturer Name: kinghelm(金航标) - LCSC Part Number: C2683360 **Pins:** - 1 [pin 1] - 10 [pin 10] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J4 — [S4B-XH-A(LF)(SN)](https://www.flux.ai/lcsc/s4b-xh-alfsn~tz2w.md) - Role: Serial Connector - Role Details: Pin1 RxD pin2 TxD pin3 ISO_GND pin4 NC test pad - Datasheet URL: https://lcsc.com/product-detail/XH-Connectors_JST_S4B-XH-A-LF-SN_XHsocket-1-4P-Curved-needle-pitch2-5mm_C157925.html - JLCPCB Part Class: Extended Part - Functional Group: Isolated Serial SAS - Manufacturer Name: JST - Product Info Url: https://lcsc.com/product-detail/XH-Connectors_JST_S4B-XH-A-LF-SN_XHsocket-1-4P-Curved-needle-pitch2-5mm_C157925.html - Package or Case Code: CONN-TH_S4B-XH-A-LF-SN - Manufacturer Part Number: S4B-XH-A(LF)(SN) - LCSC Part Number: C157925 - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J5 — [S4B-XH-A(LF)(SN)](https://www.flux.ai/lcsc/s4b-xh-alfsn~tz2w.md) - LCSC Part Number: C157925 - Part Type: Connector - Manufacturer Part Number: S4B-XH-A(LF)(SN) - Role Details: Pin1 RxD pin2 TxD pin3 ISO_GND pin4 NC test pad - Manufacturer Name: JST - Product Info Url: https://lcsc.com/product-detail/XH-Connectors_JST_S4B-XH-A-LF-SN_XHsocket-1-4P-Curved-needle-pitch2-5mm_C157925.html - Package or Case Code: CONN-TH_S4B-XH-A-LF-SN - JLCPCB Part Class: Extended Part - Datasheet URL: https://lcsc.com/product-detail/XH-Connectors_JST_S4B-XH-A-LF-SN_XHsocket-1-4P-Curved-needle-pitch2-5mm_C157925.html - Role: Serial Connector - Functional Group: Isolated Serial COM **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J6 — [S4B-XH-A(LF)(SN)](https://www.flux.ai/lcsc/s4b-xh-alfsn~tz2w.md) - Role Details: Pin1 RxD pin2 TxD pin3 ISO_GND pin4 NC test pad - Package or Case Code: CONN-TH_S4B-XH-A-LF-SN - Manufacturer Name: JST - Product Info Url: https://lcsc.com/product-detail/XH-Connectors_JST_S4B-XH-A-LF-SN_XHsocket-1-4P-Curved-needle-pitch2-5mm_C157925.html - Functional Group: Isolated Serial COM - Manufacturer Part Number: S4B-XH-A(LF)(SN) - LCSC Part Number: C157925 - Part Type: Connector - Datasheet URL: https://lcsc.com/product-detail/XH-Connectors_JST_S4B-XH-A-LF-SN_XHsocket-1-4P-Curved-needle-pitch2-5mm_C157925.html - JLCPCB Part Class: Extended Part - Role: Serial Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J7 — [PZ254V-12-20P](https://www.flux.ai/lcsc/pz254v-12-20p~v7er.md) - Product Info Url: https://lcsc.com/product-detail/Pin-Header-Female-Header_XFCN-PZ254V-12-20P_C492427.html - Package or Case Code: HDR-TH_20P-P2.54-V-M-R2-C10-S2.54 - Connector Pitch: 2.54mm - Manufacturer Name: XFCN(兴飞) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302300_XFCN-PZ254V-12-20P_C492427.pdf - Functional Group: Debug / Service - Manufacturer Part Number: PZ254V-12-20P - LCSC Part Number: C492427 - Role Details: Validated dual-service header: pins 1-6 AVR ISP, pins 7-14 ESP32 UART/download controls and rails, pins 15-18 reserved no-connect, pins 19-20 ground - Role: Debug Header - Operating Temperature: -40~+105℃ - Connector Gender: Male - JLCPCB Part Class: Extended Part - Part Type: Connector **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J8 — [S6B-XH-A(LF)(SN)](https://www.flux.ai/lcsc/s6b-xh-alfsn~i7f8.md) - Part Type: Connector - Manufacturer Part Number: S6B-XH-A(LF)(SN) - LCSC Part Number: C157919 - JLCPCB Part Class: Extended Part - Role Details: J8 machine input connector; preserve existing pin map - Product Info Url: https://lcsc.com/product-detail/XH-Connectors_JST_S6B-XH-A-LF-SN_XHsocket-1-6P-Curved-needle-pitch2-5mm_C157919.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-S6B-XH-A-LF-SN_C157919.pdf - Functional Group: Machine I/O Inputs - Package or Case Code: CONN-TH_S6B-XH-A-LF-SN - Manufacturer Name: JST - Role: Isolation **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### J9 — [S8B-XH-A(LF)(SN)](https://www.flux.ai/lcsc/s8b-xh-alfsn~vinz.md) - Part Type: Connector - Manufacturer Part Number: S8B-XH-A(LF)(SN) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-S8B-XH-A-LF-SN_C157914.pdf - Functional Group: Machine I/O Outputs - JLCPCB Part Class: Extended Part - LCSC Part Number: C157914 - Manufacturer Name: JST - Role: Isolation - Role Details: J9 machine output connector; preserve existing pin map - Product Info Url: https://lcsc.com/product-detail/XH-Connectors_JST_S8B-XH-A-LF-SN_XHsocket-1-8P-Curved-needle-pitch2-5mm_C157914.html - Package or Case Code: CONN-TH_S8B-XH-A-LF-SN **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### Q1 — [AO3400A](https://www.flux.ai/adrian95/ao3400a~ug9.md) - Role Details: U1 external N-channel pass FET - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Alpha%20&%20Omega/AO3400A_ds.pdf - Manufacturer Name: Alpha & Omega Semiconductor - Functional Group: Power Entry / Local Rails - Role: Protection - Manufacturer Part Number: AO3400A - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Transistor **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q2 — [AO3401A](https://www.flux.ai/jecstronic/ao3401a~9r5.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2007171935_HUASHUO-AO3401A_C700954.pdf - Manufacturer Name: Alpha & Omega Semiconductor - Part Type: Transistor - Role: Power Switch - Functional Group: USB / Programming - Manufacturer Part Number: AO3401A - Role Details: PMOS reverse-block/load-switch: source=USB_VBUS, drain=+5V, gate biased to GND through R13 **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q3 — [IRLML0030TRPBF](https://www.flux.ai/jecstronic/irlml0030trpbf~48d.md) - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLML0030_DataSheet_v01_01_EN-3363466.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Hardware interlocked isolated serial supply switch - Manufacturer Name: Infineon - Part Type: Transistor - Manufacturer Part Number: IRLML0030TRPBF - Functional Group: Isolated Serial COM - Role: Power Switch **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q4 — [IRLML0030TRPBF](https://www.flux.ai/jecstronic/irlml0030trpbf~48d.md) - Functional Group: Isolated Serial COM - Manufacturer Name: Infineon - Role: Power Switch - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLML0030_DataSheet_v01_01_EN-3363466.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: IRLML0030TRPBF - Part Type: Transistor - Role Details: Hardware interlocked isolated serial supply switch **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q5 — [15N10](https://www.flux.ai/lcsc/15n10~ng9y.md) - Functional Group: Downstream Ethernet + PoE - Part Type: Transistor - Role Details: 100V PoE PSE port MOSFET; functional net mapping G/D/S preserved - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2311091735_UMW-Youtai-Semiconductor-Co---Ltd--15N10_C359106.pdf - Product Info Url: https://lcsc.com/product-detail/Others_Youtai-Semiconductor-Co-Ltd-UMW15N10_C359106.html - Manufacturer Part Number: 15N10 - Manufacturer Name: UMW(友台半导体) - LCSC Part Number: C359106 - JLCPCB Part Class: Extended Part - Role: Switching - Package or Case Code: TO-252-2_L6.6-W6.1-P4.57-LS9.9-BR-CW **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q6 — [BSC110N15NS5](https://www.flux.ai/lcsc/bsc110n15ns5~qlf8.md) - Role: Switching - Part Type: Transistor - Functional Group: Downstream Ethernet + PoE - JLCPCB Part Class: Extended Part - Package or Case Code: 8-TDFN - Role Details: LM5155 external 150 V boost switch; 11 mOhm max, 28 nC typical gate charge - Drain to Source Voltage: 150V - Continuous Drain Current: 76A - LCSC Part Number: C412739 - Datasheet URL: https://www.infineon.com/assets/row/public/documents/24/49/infineon-bsc110n15ns5-datasheet-en.pdf - On Resistance: 0.011ohms - Manufacturer Name: Infineon - Manufacturer Part Number: BSC110N15NS5 **Pins:** - D [pin 5] - D [pin 6] - D [pin 9] - D [pin 8] - D [pin 7] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### T1 — [H1601CG](https://www.flux.ai/lcsc/h1601cg~2kug.md) - LCSC Part Number: C194517 - Functional Group: LAN Ethernet - Role: Ethernet Magnetics - Part Type: Ethernet - Manufacturer Part Number: H1601CG - JLCPCB Part Class: Extended Part - Role Details: 1.5 kV discrete transformer between U7 and J3 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810011121_Dongguan-Mentech-Optical---Magnetic-H1601CG_C194517.pdf - Manufacturer Name: Mentech(铭普光磁) - Product Info Url: https://lcsc.com/product-detail/Others_Dongguan-Mentech-Optical-Magnetic-H1601CG_C194517.html - Package or Case Code: SOIC-16_L12.7-W7.2-P1.27-LS9.3-BL **Pins:** - 12 [pin 12] - 13 [pin 13] - 4 [pin 4] - 5 [pin 5] - CT [pin 10] - CT [pin 7] - CT [pin 2] - CT [pin 15] - RD- [pin 8] - RD+ [pin 6] - RX- [pin 9] - RX+ [pin 11] - TD- [pin 3] - TD+ [pin 1] - TX- [pin 14] - TX+ [pin 16] ### T1B — [H1102NL](https://www.flux.ai/jecstronic/h1102nl~n1k.md) - Role Details: Controller PSE-out end; footprint row span remains layout blocker - Datasheet URL: https://www.mouser.com/datasheet/2/447/H1102NL-3071708.pdf - Role: Ethernet Magnetics - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Ethernet - Functional Group: Downstream Ethernet + PoE - Manufacturer Part Number: H1102NL - Manufacturer Name: Pulse Electronics **Pins:** - CT_1 [pin 2] - CT_2 [pin 7] - NC_1 [pin 4] - NC_2 [pin 5] - NC_3 [pin 10] - NC_4 [pin 12] - NC_5 [pin 13] - NC_6 [pin 15] - RD- [pin 8] - RD+ [pin 6] - RX- [pin 9] - RX+ [pin 11] - TD- [pin 3] - TD+ [pin 1] - TX- [pin 14] - TX+ [pin 16] ### U1 — LM74700QDBVRQ1 - Role: Input Protection - Role Details: Locked LM74700-Q1 controller for +12V_IN to VIN_PROT - Functional Group: Power Entry / Local Rails - Manufacturer Part Number: LM74700QDBVRQ1 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/01866981b4cc46f32f2b92a238881b204dd3ae900ab5a3f3d40390115d8fe6b7.pdf - Manufacturer Name: Texas Instruments **Pins:** - ANODE [pin 6] - CATHODE [pin 4] - EN [pin 3] - GATE [pin 5] - GND [pin 2] - VCAP [pin 1] ### U10 — ADUM1201ARZ-RL7 - Manufacturer Name: Analog Devices - Manufacturer Part Number: ADUM1201ARZ-RL7 - Role Details: SAS serial isolation path - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/f344f50e431ce7c6e1c9656995b21fd738fde949a8ee6c5c3fc2b08492186535.pdf - Role: Digital Isolator - Functional Group: Isolated Serial SAS **Pins:** - GND1 [pin 4] - GND2 [pin 5] - VDD1 [pin 1] - VDD2 [pin 8] - VIA [pin 7] - VIB [pin 3] - VOA [pin 2] - VOB [pin 6] ### U11 — [MAX3232EIDR](https://www.flux.ai/lcsc/max3232eidr~5tgd.md) - Package or Case Code: SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL - LCSC Part Number: C193666 - Role Details: SAS port on isolated 5 V domain - Operating Temperature: -40 ~ +85℃ - Manufacturer Name: Texas Instruments - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010332_Texas-Instruments-MAX3232EIDR_C193666.pdf - Operating Voltage: 3 ~ 5.5V - Manufacturer Part Number: MAX3232EIDR - Role: RS-232 Transceiver - Logic Function: Dual-Driver/Dual-Receiver - Product Info Url: https://lcsc.com/product-detail/RS232-ICs_Texas-Instruments-Texas-Instruments-MAX3232EIDR_C193666.html - IC Type: Transceiver - Part Type: Interface - Functional Group: Isolated Serial SAS - JLCPCB Part Class: Extended Part **Pins:** - C1- [pin 3] - C1+ [pin 1] - C2- [pin 5] - C2+ [pin 4] - DIN1 [pin 11] - DIN2 [pin 10] - DOUT1 [pin 14] - DOUT2 [pin 7] - GND [pin 15] - RIN1 [pin 13] - RIN2 [pin 8] - ROUT1 [pin 12] - ROUT2 [pin 9] - V- [pin 6] - V+ [pin 2] - VCC [pin 16] ### U12 — ADUM1201ARZ-RL7 - Functional Group: Isolated Serial COM - Role Details: COM1 serial isolation path - Role: Digital Isolator - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/f344f50e431ce7c6e1c9656995b21fd738fde949a8ee6c5c3fc2b08492186535.pdf - Part Type: Isolator - Manufacturer Part Number: ADUM1201ARZ-RL7 - Manufacturer Name: Analog Devices **Pins:** - GND1 [pin 4] - GND2 [pin 5] - VDD1 [pin 1] - VDD2 [pin 8] - VIA [pin 7] - VIB [pin 3] - VOA [pin 2] - VOB [pin 6] ### U13 — ADUM1201ARZ-RL7 - Manufacturer Part Number: ADUM1201ARZ-RL7 - Manufacturer Name: Analog Devices - Functional Group: Isolated Serial COM - Role: Digital Isolator - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/f344f50e431ce7c6e1c9656995b21fd738fde949a8ee6c5c3fc2b08492186535.pdf - Part Type: Isolator - Role Details: COM2 serial isolation path **Pins:** - GND1 [pin 4] - GND2 [pin 5] - VDD1 [pin 1] - VDD2 [pin 8] - VIA [pin 7] - VIB [pin 3] - VOA [pin 2] - VOB [pin 6] ### U14 — [MAX3232EIDR](https://www.flux.ai/lcsc/max3232eidr~5tgd.md) - Product Info Url: https://lcsc.com/product-detail/RS232-ICs_Texas-Instruments-Texas-Instruments-MAX3232EIDR_C193666.html - Role: RS-232 Transceiver - Logic Function: Dual-Driver/Dual-Receiver - Part Type: Interface - JLCPCB Part Class: Extended Part - Role Details: Two isolated COM ports - IC Type: Transceiver - Operating Temperature: -40 ~ +85℃ - Manufacturer Name: Texas Instruments - LCSC Part Number: C193666 - Package or Case Code: SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL - Manufacturer Part Number: MAX3232EIDR - Operating Voltage: 3 ~ 5.5V - Functional Group: Isolated Serial COM - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010332_Texas-Instruments-MAX3232EIDR_C193666.pdf **Pins:** - C1- [pin 3] - C1+ [pin 1] - C2- [pin 5] - C2+ [pin 4] - DIN1 [pin 11] - DIN2 [pin 10] - DOUT1 [pin 14] - DOUT2 [pin 7] - GND [pin 15] - RIN1 [pin 13] - RIN2 [pin 8] - ROUT1 [pin 12] - ROUT2 [pin 9] - V- [pin 6] - V+ [pin 2] - VCC [pin 16] ### U15 — RBE-0505S - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/2ebd3c274da3f5269e56219a278a860048062287430d8ea7d660950505f7c425.pdf - Manufacturer Name: RECOM - Functional Group: Isolated Serial SAS - Role: Isolated DC-DC - Role Details: Locked 1 kV RBE-0505S retained for Rev A; REV-B TODO: evaluate >=2.5 kV isolated DC/DC upgrade - Manufacturer Part Number: RBE-0505S **Pins:** - -Vin [pin 2] - -Vout [pin 5] - +Vin [pin 1] - +Vout [pin 6] - NC [pin 4] ### U16 — RBE-0505S - Functional Group: Isolated Serial COM - Role Details: Locked 1 kV RBE-0505S retained for Rev A; REV-B TODO: evaluate >=2.5 kV isolated DC/DC upgrade - Manufacturer Part Number: RBE-0505S - Role: Isolated DC-DC - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/2ebd3c274da3f5269e56219a278a860048062287430d8ea7d660950505f7c425.pdf - Manufacturer Name: RECOM **Pins:** - -Vin [pin 2] - -Vout [pin 5] - +Vin [pin 1] - +Vout [pin 6] - NC [pin 4] ### U17 — [74LVC125AD,112](https://www.flux.ai/lcsc/74lvc125adc112~k08c.md) - LCSC Part Number: C548083 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Nexperia-74LVC125AD-112_C548083.pdf - Manufacturer Part Number: 74LVC125AD,112 - Part Type: Buffers / Drivers - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-74LVC125AD-112_C548083.html - Role: Tri-State Buffer - Manufacturer Name: Nexperia - Functional Group: Serial Mux / USB - Role Details: Prevents deselected ADuM outputs fighting shared MCU RX - JLCPCB Part Class: Extended Part - Package or Case Code: SOP-14_L8.6-W3.9-P1.27-LS6.0-BL **Pins:** - #1OE [pin 1] - #2OE [pin 4] - #3OE [pin 10] - #4OE [pin 13] - 1A [pin 2] - 1Y [pin 3] - 2A [pin 5] - 2Y [pin 6] - 3A [pin 9] - 3Y [pin 8] - 4A [pin 12] - 4Y [pin 11] - GND [pin 7] - VCC [pin 14] ### U18 — [ATECC608B-MAHDA-S](https://www.flux.ai/adrian95/atecc608b-mahda-s~k9a.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: Secure Element - Role Details: I2C root of trust and hardware ID - Part Type: Integrated Circuit - Manufacturer Name: Microchip - Datasheet URL: http://ww1.microchip.com/downloads/en/DeviceDoc/ATECC608B-CryptoAuthentication-Device-Summary-Data-Sheet-DS40002239A.pdf - Functional Group: Memory / RTC / Security - Manufacturer Part Number: ATECC608B-MAHDA-S **Pins:** - EP [pin 9] - GND [pin 4] - NC [pin 7] - NC [pin 1] - NC [pin 3] - NC [pin 2] - SCL [pin 6] - SDA [pin 5] - VCC [pin 8] ### U19 — [PC817C](https://www.flux.ai/lcsc/pc817c~olct.md) - Manufacturer Part Number: PC817C - Max Forward Current: 50mA - JLCPCB Part Class: Extended Part - Role: Isolation - Part Type: Isolator - Functional Group: Machine I/O Inputs - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - Forward Voltage Drop: 1.2V - Manufacturer Name: 华润华晶 - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Max Reverse Voltage: 5V - LCSC Part Number: C115500 **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U2 — [LMR33630ADDAR](https://www.flux.ai/lcsc/lmr33630addar~jgsz.md) - JLCPCB Part Class: Extended Part - Package or Case Code: ESOP-8_L4.9-W3.9-P1.27-LS6.0-TL-EP - Functional Group: Power Entry / Local Rails - Datasheet URL: ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Flmr33630 - Manufacturer Name: TI(德州仪器) - Manufacturer Part Number: LMR33630ADDAR - Role: Buck Regulator - Part Type: DC-DC Converters - Role Details: VIN_PROT to +5V locked values - LCSC Part Number: C841384 **Pins:** - BOOT [pin 7] - EN [pin 3] - EP [pin 9] - FB [pin 5] - PG [pin 4] - PGND [pin 1] - SW [pin 8] - VCC [pin 6] - VIN [pin 2] ### U20 — [PC817C](https://www.flux.ai/lcsc/pc817c~olct.md) - Manufacturer Part Number: PC817C - Functional Group: Machine I/O Inputs - Max Forward Current: 50mA - JLCPCB Part Class: Extended Part - Part Type: Isolator - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf - Role: Isolation - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - Forward Voltage Drop: 1.2V - Manufacturer Name: 华润华晶 - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Max Reverse Voltage: 5V - LCSC Part Number: C115500 **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U21 — [PC817C](https://www.flux.ai/lcsc/pc817c~olct.md) - Manufacturer Name: 华润华晶 - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Forward Voltage Drop: 1.2V - Role: Isolation - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - LCSC Part Number: C115500 - Max Reverse Voltage: 5V - Functional Group: Machine I/O Inputs - Part Type: Isolator - JLCPCB Part Class: Extended Part - Manufacturer Part Number: PC817C - Max Forward Current: 50mA - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U22 — [PC817C](https://www.flux.ai/lcsc/pc817c~olct.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf - Role: Isolation - Part Type: Isolator - Manufacturer Part Number: PC817C - Max Forward Current: 50mA - JLCPCB Part Class: Extended Part - Max Reverse Voltage: 5V - LCSC Part Number: C115500 - Manufacturer Name: 华润华晶 - Functional Group: Machine I/O Inputs - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - Forward Voltage Drop: 1.2V **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U23 — [PC817C](https://www.flux.ai/lcsc/pc817c~olct.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf - Functional Group: Machine I/O Outputs - JLCPCB Part Class: Extended Part - Max Forward Current: 50mA - Manufacturer Part Number: PC817C - Part Type: Isolator - LCSC Part Number: C115500 - Max Reverse Voltage: 5V - Forward Voltage Drop: 1.2V - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Manufacturer Name: 华润华晶 - Role: Isolation **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U24 — [PC817C](https://www.flux.ai/lcsc/pc817c~olct.md) - Max Forward Current: 50mA - Manufacturer Part Number: PC817C - JLCPCB Part Class: Extended Part - Functional Group: Machine I/O Outputs - Part Type: Isolator - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf - Role: Isolation - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - Forward Voltage Drop: 1.2V - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Manufacturer Name: 华润华晶 - Max Reverse Voltage: 5V - LCSC Part Number: C115500 **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U25 — [PC817C](https://www.flux.ai/lcsc/pc817c~olct.md) - Forward Voltage Drop: 1.2V - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - Role: Isolation - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Manufacturer Name: 华润华晶 - LCSC Part Number: C115500 - Functional Group: Machine I/O Outputs - Max Reverse Voltage: 5V - JLCPCB Part Class: Extended Part - Max Forward Current: 50mA - Manufacturer Part Number: PC817C - Part Type: Isolator - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U26 — [PC817C](https://www.flux.ai/lcsc/pc817c~olct.md) - Max Reverse Voltage: 5V - Role: Isolation - LCSC Part Number: C115500 - Functional Group: Machine I/O Outputs - Manufacturer Name: 华润华晶 - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - Forward Voltage Drop: 1.2V - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf - Part Type: Isolator - Manufacturer Part Number: PC817C - Max Forward Current: 50mA - JLCPCB Part Class: Extended Part **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U28 — [TPS23861PWR](https://www.flux.ai/adrian95/tps23861pwr~t7.md) - Role: Power Conversion - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: Downstream Ethernet + PoE - Manufacturer Name: Texas Instruments - Manufacturer Part Number: TPS23861PWR - Role Details: TPS23861 single active Type-2 PSE port with low-side pass FET, Kelvin shunt network, unused ports terminated per datasheet, and ESP32 reset/shutdown/I2C control - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps23861.pdf **Pins:** - ~INT [pin 6] - ~RESET [pin 2] - ~SHTDWN [pin 24] - A3 [pin 23] - AGND [pin 22] - AIN [pin 25] - AOUT [pin 26] - DGND [pin 7] - DRAIN1 [pin 16] - DRAIN2 [pin 20] - DRAIN3 [pin 9] - DRAIN4 [pin 13] - GATE1 [pin 17] - GATE2 [pin 21] - GATE3 [pin 10] - GATE4 [pin 14] - KSENSA [pin 18] - KSENSB [pin 11] - N/C [pin 27] - SCL [pin 3] - SDAI [pin 4] - SDAO [pin 5] - SEN1 [pin 15] - SEN2 [pin 19] - SEN3 [pin 8] - SEN4 [pin 12] - VDD [pin 1] - VPWR [pin 28] ### U29 — [LM5155DSSR](https://www.flux.ai/lcsc/lm5155dssr~5svk.md) - Role Details: Final 12 V to 54 V LM5155 boost controller: 15 uH, 11.0/10.5 V UVLO, finalized compensation, 150 V MOSFET and 200 V rectifier baseline - Role: Power Conversion - Manufacturer Name: TI(德州仪器) - Functional Group: Downstream Ethernet + PoE,Power Entry / Local Rails - Package or Case Code: WSON-12_L3.0-W2.0-P0.50-BL-EP - LCSC Part Number: C545416 - Manufacturer Part Number: LM5155DSSR - JLCPCB Part Class: Extended Part - Part Type: DC-DC Converters **Pins:** - AGND [pin 7] - BIAS [pin 1] - COMP [pin 6] - CS [pin 5] - EP [pin 13] - FB [pin 8] - GATE [pin 3] - PGND [pin 4] - PGOOD [pin 11] - RT [pin 10] - SS [pin 9] - UVLO/SYNC [pin 12] - VCC [pin 2] ### U3 — [LMR33630ADDAR](https://www.flux.ai/lcsc/lmr33630addar~jgsz.md) - Manufacturer Name: TI(德州仪器) - Datasheet URL: ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Flmr33630 - Part Type: DC-DC Converters - Manufacturer Part Number: LMR33630ADDAR - JLCPCB Part Class: Extended Part - Role: Buck Regulator - Package or Case Code: ESOP-8_L4.9-W3.9-P1.27-LS6.0-TL-EP - Role Details: VIN_PROT to +3V3 locked values - Functional Group: Power Entry / Local Rails - LCSC Part Number: C841384 **Pins:** - BOOT [pin 7] - EN [pin 3] - EP [pin 9] - FB [pin 5] - PG [pin 4] - PGND [pin 1] - SW [pin 8] - VCC [pin 6] - VIN [pin 2] ### U4 — [ATMEGA1284P-AU](https://www.flux.ai/adrian95/atmega1284p-au~bua.md) - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/ATmega164A_PA-324A_PA-644A_PA-1284_P_Data-Sheet-40002070B.pdf - Part Type: Microcontroller - Role: Microcontroller - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ATMEGA1284P-AU - Manufacturer Name: Microchip - Functional Group: ATmega / Machine Control - Role Details: USART0 9-bit serial; SPI and I2C master **Pins:** - ~RESET [pin 4] - AREF [pin 29] - AVCC [pin 27] - GND [pin 28] - GND [pin 39] - GND [pin 18] - GND [pin 6] - PA0 [pin 37] - PA1 [pin 36] - PA2 [pin 35] - PA3 [pin 34] - PA4 [pin 33] - PA5 [pin 32] - PA6 [pin 31] - PA7 [pin 30] - PB0 [pin 40] - PB1 [pin 41] - PB2 [pin 42] - PB3 [pin 43] - PB4 [pin 44] - PB5 [pin 1] - PB6 [pin 2] - PB7 [pin 3] - PC0 [pin 19] - PC1 [pin 20] - PC2 [pin 21] - PC3 [pin 22] - PC4 [pin 23] - PC5 [pin 24] - PC6 [pin 25] - PC7 [pin 26] - PD0 [pin 9] - PD1 [pin 10] - PD2 [pin 11] - PD3 [pin 12] - PD4 [pin 13] - PD5 [pin 14] - PD6 [pin 15] - PD7 [pin 16] - VCC [pin 5] - VCC [pin 17] - VCC [pin 38] - XTAL1 [pin 8] - XTAL2 [pin 7] ### U5 — [ESP32-S3-WROOM-1U-N16R8](https://www.flux.ai/adrian95/esp32-s3-wroom-1u-n16r8~1pb.md) - Manufacturer Part Number: ESP32-S3-WROOM-1U-N16R8 - Part Type: Module - Manufacturer Name: Espressif Systems - Role Details: Gateway, secure boot, controller-side Ethernet orchestration - Functional Group: ESP32 / Orchestration - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf - Role: Microcontroller Module - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: parametric-v1 **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND [pin 41_3] - GND [pin 41_6] - GND [pin 41_7] - GND [pin 41_5] - GND [pin 41_2] - GND [pin 40] - GND [pin 41_1] - GND [pin 1] - GND [pin 41_9] - GND [pin 41_8] - GND [pin 41_4] - IO0 [pin 27] - IO1 [pin 39] - IO10 [pin 18] - IO11 [pin 19] - IO12 [pin 20] - IO13 [pin 21] - IO14 [pin 22] - IO15 [pin 8] - IO16 [pin 9] - IO17 [pin 10] - IO18 [pin 11] - IO19 [pin 13] - IO2 [pin 38] - IO20 [pin 14] - IO21 [pin 23] - IO3 [pin 15] - IO35 [pin 28] - IO36 [pin 29] - IO37 [pin 30] - IO38 [pin 31] - IO39 [pin 32] - IO4 [pin 4] - IO40 [pin 33] - IO41 [pin 34] - IO42 [pin 35] - IO45 [pin 26] - IO46 [pin 16] - IO47 [pin 24] - IO48 [pin 25] - IO5 [pin 5] - IO6 [pin 6] - IO7 [pin 7] - IO8 [pin 12] - IO9 [pin 17] - RXD0 [pin 36] - TXD0 [pin 37] ### U6 — [USBLC6-2SC6](https://www.flux.ai/vasy_skral/usblc6-2sc6~g1b.md) - Role: Protection - LCSC Part Number: C7519 - Functional Group: USB / Programming - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Protection - 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 - Role Details: USB-C data-line ESD array - Manufacturer Name: STMicroelectronics - Symbol Style: parametric-v1 - Manufacturer Part Number: USBLC6-2SC6 **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### U7 — [W5500](https://www.flux.ai/vasy_skral/w5500~9ux.md) - Manufacturer Part Number: W5500 - Functional Group: LAN Ethernet - Manufacturer Name: WIZnet - License: https://creativecommons.org/licenses/by/4.0/ - Role: Ethernet Controller - Datasheet URL: https://docs.wiznet.io/img/products/w5500/w5500_ds_v109e.pdf - Role Details: Network-facing no-PoE data port - Symbol Style: parametric-v1 - Part Type: Integrated Circuit **Pins:** - ~INT [pin 36] - ~RST [pin 37] - ~SCS [pin 32] - 1V2O [pin 22] - ACTLED [pin 27] - AGND [pin 3] - AGND [pin 16] - AGND [pin 14] - AGND [pin 48] - AGND [pin 9] - AGND [pin 19] - AVDD [pin 21] - AVDD [pin 15] - AVDD [pin 8] - AVDD [pin 11] - AVDD [pin 4] - AVDD [pin 17] - DNC [pin 7] - DUPLED [pin 26] - EXRES1 [pin 10] - GND [pin 29] - LINKLED [pin 25] - MISO [pin 34] - MOSI [pin 35] - NC [pin 46] - NC [pin 12] - NC [pin 47] - NC [pin 13] - PMODE0 [pin 45] - PMODE1 [pin 44] - PMODE2 [pin 43] - RSVD [pin 23] - RSVD [pin 42] - RSVD [pin 38] - RSVD [pin 39] - RSVD [pin 40] - RSVD [pin 41] - RXN [pin 5] - RXP [pin 6] - SCLK [pin 33] - SPDLED [pin 24] - TOCAP [pin 20] - TXN [pin 1] - TXP [pin 2] - VBG [pin 18] - VDD [pin 28] - XI/CLKIN [pin 30] - XO [pin 31] ### U7B — [W5500](https://www.flux.ai/vasy_skral/w5500~9ux.md) - Manufacturer Name: WIZnet - Manufacturer Part Number: W5500 - Role: Ethernet Controller - Functional Group: Downstream Ethernet + PoE - Role Details: Display-side W5500 data link; shared ESP32 SPI with dedicated CS/INT/RESET, isolated magnetics, separate mode-B PSE power on spare pairs - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://docs.wiznet.io/img/products/w5500/w5500_ds_v109e.pdf - Part Type: Integrated Circuit - Symbol Style: parametric-v1 **Pins:** - ~INT [pin 36] - ~RST [pin 37] - ~SCS [pin 32] - 1V2O [pin 22] - ACTLED [pin 27] - AGND [pin 3] - AGND [pin 16] - AGND [pin 14] - AGND [pin 48] - AGND [pin 9] - AGND [pin 19] - AVDD [pin 21] - AVDD [pin 15] - AVDD [pin 8] - AVDD [pin 11] - AVDD [pin 4] - AVDD [pin 17] - DNC [pin 7] - DUPLED [pin 26] - EXRES1 [pin 10] - GND [pin 29] - LINKLED [pin 25] - MISO [pin 34] - MOSI [pin 35] - NC [pin 46] - NC [pin 12] - NC [pin 47] - NC [pin 13] - PMODE0 [pin 45] - PMODE1 [pin 44] - PMODE2 [pin 43] - RSVD [pin 23] - RSVD [pin 42] - RSVD [pin 38] - RSVD [pin 39] - RSVD [pin 40] - RSVD [pin 41] - RXN [pin 5] - RXP [pin 6] - SCLK [pin 33] - SPDLED [pin 24] - TOCAP [pin 20] - TXN [pin 1] - TXP [pin 2] - VBG [pin 18] - VDD [pin 28] - XI/CLKIN [pin 30] - XO [pin 31] ### U8 — [MB85RS256TYPNF-GS-BCERE1](https://www.flux.ai/lcsc/mb85rs256typnf-gs-bcere1~gnro.md) - Product Info Url: https://lcsc.com/product-detail/FRAM_FUJITSU_MB85RS256TYPNF-GS-BCERE1_MB85RS256TYPNF-GS-BCERE1_C190125.html - Functional Group: Memory / RTC / Security - Role: Nonvolatile Memory - Role Details: Locked F-RAM event storage, not EEPROM; footprint sourced from pin-compatible MB85RS256 SOP-8 family member - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810011024_FUJITSU-MB85RS256TYPNF-GS-BCERE1_C190125.pdf - LCSC Part Number: C190125 - Manufacturer Part Number: MB85RS256TYPNF-GS-BCERE1 - Part Type: FRAM - Manufacturer Name: Fujitsu - Package or Case Code: SOP-8_L5.0-W4.0-P1.27-LS6.0-BL - JLCPCB Part Class: Extended Part **Pins:** - #CS [pin 1] - #HOLD [pin 7] - #WP [pin 3] - SCK [pin 6] - SI [pin 5] - SO [pin 2] - VDD [pin 8] - VSS [pin 4] ### U9 — [DS3231SN#T&R](https://www.flux.ai/jecstronic/ds3231sntandr~uzt.md) - Manufacturer Name: Maxim Integrated - Role: RTC - Functional Group: Memory / RTC / Security - Part Type: Real Time Clocks - Manufacturer Part Number: DS3231SN#T&R - Role Details: I2C address 0x68 with CR2032 backup - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810071015_Maxim-Integrated-DS3231SN-T-R_C9866.pdf **Pins:** - ~INT~/SQW - ~RST - 32KHZ - GND - GND - GND - GND - GND - GND - GND - GND - GND - SCL - SDA - VBAT - VCC ### X1 — [X322516MLB4SI](https://www.flux.ai/adrian95/x322516mlb4si~6oj.md) - Frequency: 16MHz - Manufacturer Part Number: X322516MLB4SI - Part Type: Resonator - Functional Group: ATmega / Machine Control - Role Details: ATmega 16 MHz crystal, 9 pF load; C12/C13 18 pF load capacitors retained - Role: Timing - LCSC Part Number: C13738 - Manufacturer Name: YXC - Datasheet URL: https://datasheet.lcsc.com/lcsc/2103291133_Yangxing-Tech-X322516MLB4SI_C13738.pdf **Pins:** - 1 - 2 - 3 - 4 ### X2 — X322525MSB4SI - Manufacturer Name: YXC - Part Type: Crystals and Oscillators - Role Details: Locked 25 MHz W5500 crystal - Datasheet URL: https://www.lcsc.com/product-detail/C13740.html - Functional Group: LAN Ethernet - Manufacturer Part Number: X322525MSB4SI - Mount: Surface Mount - Role: Timing - Frequency: 25MHz - Package or Case Code: CRYSTAL-SMD **Pins:** - GND1 [pin 2] - GND2 [pin 4] - XTAL1 [pin 1] - XTAL2 [pin 3] ### X3 — X322525MSB4SI - Frequency: 25MHz - Role Details: U7B W5500 25 MHz crystal - Mount: Surface Mount - Manufacturer Part Number: X322525MSB4SI - Package or Case Code: CRYSTAL-SMD - Role: Timing - Functional Group: Downstream Ethernet + PoE - Part Type: Crystals and Oscillators - Manufacturer Name: YXC - Datasheet URL: https://www.lcsc.com/product-detail/C13740.html **Pins:** - GND1 [pin 2] - GND2 [pin 4] - XTAL1 [pin 1] - XTAL2 [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/pinionseal44/intercede-a1-controller~lw](https://www.flux.ai/pinionseal44/intercede-a1-controller~lw).* --- *Generated from [https://www.flux.ai/pinionseal44/intercede-a1-controller~lw](https://www.flux.ai/pinionseal44/intercede-a1-controller~lw)*