4 layers159.9 × 119.3 mm
6 layers160 × 101.4 mm
C816SX
rjacobs1969/C816Modern 8 bit computer
- Size
- 160 × 101.4 mm
- Copper layers
- 6
- Thickness
- 0.9 mm
- Parts
- 246
- Nets
- 445
- Pads
- 1,589
- Tracks, vias
- 4,995, 722
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 19 Apr 2026
- Updated
- 20 May 2026
Overview
C816SX is an open-source printed circuit board by rjacobs1969, from the rjacobs1969/C816 repository on GitHub. It is a 6-layer board of 160 × 101.4 mm with 246 parts on 445 nets, routed with 4,995 tracks and 722 vias.
It is built around the ESP32-C5-WROOM-1, W25Q128JVSIQ and TS482IDT, with the SN74LVC8T245PWRE4, PHDMI2F4X and USBLC6-2SC6 among its other parts. Its parts include 82 capacitors, 48 resistors, 31 ICs, 28 connectors and 12 diodes. It belongs with the ESP32 and RISC-V boards of this library.
Main components
12
ESP32-C5-WROOM-1
SMD,27.5x18mmSMD,27.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
TS482IDT
SO-8-40℃~+85℃ 0.03% 107mWx2@16Ω 110dB 2-Channel 2V~5.5V 5.5mA 85dB Automatic mute/no-noise switch SO-8 Audio Amplifiers ROHSSTMicroelectronicsAudio Amplifiers
SN74LVC8T245PWRE4
TSSOP-24-40℃~+85℃ 1 8 Level translator Power-off protection、Output enable high-impedance Tri-State TSSOP-24 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level ShiftersPHDMI2F4X
DFN2510A-10-40℃~+85℃ 0.6pF 1uA 4.6V 6V ESD Four channels Unidirectional DFN2510A-10 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
SP720ABTG
SOIC-16-40℃~+105℃ 1nA 2V 30V 3A@8/20us 3pF ESD IEC 61000-4-5 SOIC-16 ESD and Surge Protection (TVS/ESD) ROHSLittelfuseESD And Surge Protection (TVS/ESD)
IS61WV20488BLL-10TLI
TSOP-44-10.2mm-40℃~+85℃ 10ns 16Mbit 2.4V~3.6V 35mA Auto power-down function TSOP-44-10.2mm SRAM ROHSISSISRAM
PCM5102APW
TSSOP-20-25℃~+85℃ 1.8V~3.3V 2 32 384kHz 500uA 50MHz Audio Decoder Digital filtering、Power-down mode I2S TSSOP-20 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
SM4007PL
SOD-123FL-55℃~+150℃ 1.1V@1A 10uA@1kV 1A 1kV 25A Independent SOD-123FL Diodes - General Purpose ROHSMDDDiodes - General Purpose
1NM96000C33YC
SMD2016-4P-40℃~+85℃ 96MHz LVCMOS ±25ppm SMD2016-4P Programmable Oscillators ROHSSJKProgrammable Oscillators
30R160UPR
插件,P=5.1mm-40℃~+85℃ 1.6A 110mΩ 3.2A 30V 30mΩ 40A 8s 900mW 插件,P=5.1mm Resettable Fuses ROHSLittelfuseResettable Fuses
README
README.mdC816
Parts
246| Qty | Value | Footprint | References |
|---|---|---|---|
| 60 | 100n | Capacitor_SMD:C_0402_1005Metric | C10, C11, C20, C22, C23, C24, C25, C26, C27, C28, C29, C30, C31, C32, C33, C34 +44 |
| 14 | 10k | Resistor_SMD:R_Array_Convex_4x0603 | RN8, RN9, RN13, RN14, RN15, RN16, RN19, RN20, RN21, RN22, RN23, RN26, RN27, RN28 |
| 9 | 33 | Resistor_SMD:R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4, RN5, RN6, RN7, RN11, RN12 |
| 9 | 470 | Resistor_SMD:R_0603_1608Metric | R2, R11, R12, R18, R19, R25, R40, R41, R52 |
| 8 | SN74LVC8T245PWR | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U1, U2, U3, U4, U6, U10, U13, U32 |
| 7 | 10K | Resistor_SMD:R_0603_1608Metric | R15, R32, R45, R47, R49, R51, R56 |
| 7 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R3, R4, R34, R35, R36, R42 |
| 7 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C1, C12, C13, C14, C15, C18, C19 |
| 7 | 3k9 | Resistor_SMD:R_0603_1608Metric | R20, R21, R27, R28, R29, R30, R31 |
| 6 | 1uF | Capacitor_SMD:C_0603_1608Metric | C7, C8, C47, C48, C79, C80 |
| 4 | 1k | Resistor_SMD:R_Array_Convex_4x0603 | RN10, RN24, RN25, RN29 |
| 4 | 33 | Resistor_SMD:R_0603_1608Metric | R16, R17, R23, R24 |
| 4 | 3K9 | Resistor_SMD:R_0603_1608Metric | R5, R6, R7, R8 |
| 4 | LED | LED_SMD:LED_0603_1608Metric | D6, D8, D9, D10 |
| 4 | MountingHole | MountingHole:MountingHole_3.5mm | H1, H2, H3, H4 |
| 4 | PHDMI2F4 | Package_DFN_QFN:Diodes_UDFN-10_1x2.5mm_P0.5mm | U19, U20, U21, U22 |
| 4 | SM4007PL | Diode_SMD:Nexperia_CFP3_SOD-123W | D7, D11, D12, D13 |
| 4 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U23, U26, U27, U28 |
| 3 | LED | LED_SMD:LED_0805_2012Metric | D14, D15, D16 |
| 2 | 1000uF | Capacitor_THT:C_Radial_D8.0mm_H7.0mm_P3.50mm | C57, C75 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric | R9, R10 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C21, C78 |
| 2 | 1nF | Capacitor_SMD:C_0402_1005Metric | C16, C17 |
| 2 | 220uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C4, C5 |
| 2 | 330 | Resistor_SMD:R_0603_1608Metric | R46, R50 |
| 2 | 390 | Resistor_SMD:R_0603_1608Metric | R33, R48 |
| 2 | 49.9 | Resistor_SMD:R_Array_Convex_4x0603 | RN17, RN18 |
| 2 | 5K1 | Resistor_SMD:R_0603_1608Metric | R13, R14 |
| 2 | 74LVC07ADR | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U7, U8 |
| 2 | Conn_01x10 | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J26, J29 |
| 2 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J17, J22 |
| 2 | Conn_02x04_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J4, J19 |
| 2 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J6, J7 |
| 2 | DE9_Pins | Connector_Dsub:DSUB-9_Pins_Horizontal_P2.77x2.84mm_EdgePinOffset4.94mm_Housed_MountingHolesOffset4.94mm | J8, J9 |
| 2 | HDMI_A | Connector_Video:HDMI_A_Molex_208658-1001_Horizontal | J14, J15 |
| 2 | Jumper_2_Open | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | JP1, JP2 |
| 2 | NYS354 | PS2:NYS354 | J11, J13 |
| 2 | SP720ABTG | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U9, U12 |
| 2 | SW_Push | Button_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx83-2LFS | SW5, SW6 |
| 2 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U14, U15 |
| 1 | 0.025/2W | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R43 |
| 1 | 1NM96000C33YC | Oscillator:Oscillator_SMD_SiT_PQFN-4Pin_2.0x1.6mm | Y1 |
| 1 | 1k5 | Resistor_SMD:R_0603_1608Metric | R22 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 24C02Cx-x-SN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U33 |
| 1 | 30R160UPR | Fuse:Fuse_Bourns_MF-RG300 | F1 |
| 1 | 5749265-1 | PS2:57492651 | J5 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | AudioJack3 | Connector_Audio:Jack_3.5mm_CUI_SJ1-3533NG_Horizontal_CircularHoles | J10 |
| 1 | Conn_01x02 | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J30 |
| 1 | Conn_01x02 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J28 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J12 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J18 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J25 |
| 1 | Conn_01x08_Pin | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | Conn_02x06_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x06_P2.54mm_Vertical | J2 |
| 1 | DDR3_204P_SMD | FPGA AND STUFF:DDR3-SMD_0705F0BE40F | SLOT1 |
| 1 | ESP32-C5-WROOM-1 | PCM_Espressif:ESP32-C5-WROOM-1 | U24 |
| 1 | I2C 5V | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J23 |
| 1 | IS61WV20488BLL-10TLI | Package_SO:TSOP-II-44_10.16x18.41mm_P0.8mm | U25 |
| 1 | NetTie_2 | FPGA AND STUFF:MyNetTie-2_SMD_Pad0.25mm | NT1 |
| 1 | PCM5102A | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U18 |
| 1 | SD_Card_Receptacle | Connector_Card:SD_TE_2041021 | J3 |
| 1 | SMBJ6.5CA | Diode_SMD:D_SMB | D3 |
| 1 | SW_DIP_x02 | Button_Switch_THT:SW_DIP_SPSTx02_Slide_9.78x7.26mm_W7.62mm_P2.54mm | SW1 |
| 1 | SW_DIP_x04 | Button_Switch_THT:SW_DIP_SPSTx04_Piano_CTS_Series194-4MSTN_W7.62mm_P2.54mm | SW2 |
| 1 | TCA9548APWR | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U29 |
| 1 | TS482IDT | Package_SO:SOIC-8_5.3x6.2mm_P1.27mm | U16 |
| 1 | USB_A_Stacked | Connector_USB:USB_A_Wuerth_61400826021_Horizontal_Stacked | J20 |
| 1 | USB_B | Connector_USB:USB_B_Lumberg_2411_02_Horizontal | J21 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J16 |
| 1 | W65C22SxQ | Package_QFP:LQFP-44_10x10mm_P0.8mm | U11 |
| 1 | W65C816SxQ | Package_QFP:LQFP-44_10x10mm_P0.8mm | U5 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23-3 | U17 |
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Questions
How big is the C816SX PCB?
It measures 160 × 101.4 mm and has 6 copper layers, 0.9 mm thick.
What parts does the C816SX use?
246 parts, built around the ESP32-C5-WROOM-1, W25Q128JVSIQ, TS482IDT and SN74LVC8T245PWRE4. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the C816SX KiCad files?
From the rjacobs1969/C816 repository on GitHub, at the commit this page was made from: the board is Hardware/Kicad/C816SX/C816SX.kicad_pcb and its schematic Hardware/Kicad/C816Classic/C816Classic.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the C816SX design in my own project?
Its repository states no licence, so its author keeps all rights: ask rjacobs1969 before reusing the design.