2 layers400 × 400 mm
2 layers450 × 400 mm
FULL BOARD SQ5
urichess/chessboard- Size
- 450 × 400 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 207
- Nets
- 137
- Pads
- 680
- Tracks, vias
- 152, 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 Aug 2024
- Updated
- 1 Nov 2026
Overview
FULL BOARD SQ5 is an open-source printed circuit board by urichess, from the urichess/chessboard repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 450 × 400 mm with 207 parts on 137 nets, routed with 152 tracks and 5 vias.
It is built around the CD74HC4067M, AP2112K-3.3 and 24LC512-I/P, with the SS14, BC847 and CMT-1203-SMT-TR among its other parts. Its parts include 88 capacitors, 72 ICs, 27 resistors, 9 diodes and 7 connectors. It belongs with the STM32 boards of this library.
Main components
9
CD74HC4067M
SOIC-24-300mil-55℃~+125℃ 16 160Ω 16:1 22ns 2V~6V 345ns 365ns 89MHz Bidirectional analog channel、Glitch-free switching SOIC-24-300mil Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
24LC512-I/P
PDIP-8-300mil-40℃~+85℃ 1,000,000 cycles 2.5V~5.5V 200 Years 400kHz 512Kbit 5ms Hardware write protection function、Noise suppression function I2C PDIP-8-300mil EEPROM ROHSMicrochip TechnologyEEPROM
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
BC847
SOT-231 NPN 100MHz 100mA 100nA 110 200mW 45V 500mV 6V NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
CMT-1203-SMT-TR
--40℃~+120℃ 12mm 12mm 25V 3.3mm 4kHz 81dB Passive (Externally Driven) Piezoelectric - Buzzers ROHSCUIBuzzersPESD5V0L2BT
SOT-23-65℃~+150℃ 13A@8/20us 1uA 2 26V 350W@8/20us 5V 7.6V 75pF Bidirectional ESD IEC 61000-4-2 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)
TL3342F450QG
SMD-4P,5.2x5.2mm-20℃~+70℃ 1.54mm 100,000 cycles 12V 4.5N 5.2mm 50mA Gull Wing Round Button SPST-NO Surface Mount,Vertical SMD-4P,5.2x5.2mm Tactile Switches ROHSE-SwitchTactile Switches
TVS3V3L4U
SOT-23-6ESD And Surge Protection (TVS/ESD)TECH PUBLIC
Parts
207| Qty | Value | Footprint | References |
|---|---|---|---|
| 68 | 0,1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27, C28, C29, C30, C31, C32 +52 |
| 13 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C8, C9, C10, C11, C12, C13, C14, C15, C33, C51, C69, C87 |
| 8 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14, R20, R21, R22, R23, R24, R25, R26 |
| 7 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R8, R9, R10, R11, R12, R15 |
| 4 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4, R5, R6 |
| 4 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16, R17, R18, R19 |
| 4 | CD74HC4067M | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U21, U38, U55, U72 |
| 4 | HALL_SENSOR11 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U15, U32, U49, U66 |
| 4 | HALL_SENSOR12 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U19, U36, U53, U70 |
| 4 | HALL_SENSOR15 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U16, U33, U50, U67 |
| 4 | HALL_SENSOR16 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U20, U37, U54, U71 |
| 4 | HALL_SENSOR3 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U13, U30, U47, U64 |
| 4 | HALL_SENSOR4 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U17, U34, U51, U68 |
| 4 | HALL_SENSOR7 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U14, U31, U48, U65 |
| 4 | HALL_SENSOR8 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U18, U35, U52, U69 |
| 4 | HALL_SENSOR_1 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U5, U22, U39, U56 |
| 4 | HALL_SENSOR_10 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U11, U28, U45, U62 |
| 4 | HALL_SENSOR_13 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U8, U25, U42, U59 |
| 4 | HALL_SENSOR_14 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U12, U29, U46, U63 |
| 4 | HALL_SENSOR_2 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U9, U26, U43, U60 |
| 4 | HALL_SENSOR_5 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U6, U23, U40, U57 |
| 4 | HALL_SENSOR_6 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U10, U27, U44, U61 |
| 4 | HALL_SENSOR_9 | PCM_Package_TO_SOT_SMD_AKL:SOT-23_Handsoldering | U7, U24, U41, U58 |
| 3 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C6, C16 |
| 3 | LED_GREEN | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D3, D9 |
| 2 | 3.9pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3 |
| 2 | 4.7pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C7 |
| 2 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3, U4 |
| 2 | SS14 | Diode_SMD:D_SMA | D4, D5 |
| 1 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R13 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R27 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 24LC512 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | BC847 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | CMT-1203-SMT | CMT-1203-SMT:CUI_CMT-1203-SMT | LS1 |
| 1 | CONN_2x1 | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J4 |
| 1 | Conn_02x04_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x04_P2.54mm_Vertical_SMD | J7 |
| 1 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical_SMD | J8 |
| 1 | Conn_ARM_JTAG_SWD_10 | BD125-10-A-0305-0580-L-B:GCT_BD125-10-A-0305-0580-L-B | J1 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | LED_ORANGE | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D8 |
| 1 | LED_RED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D6 |
| 1 | NX3215SA-32.768KHZ-EXS00A-MU00525 | PCM_Crystal_AKL:Crystal_SMD_MicroCrystal_CC7V-T1A-2Pin_3.2x1.5mm_HandSoldering | Y1 |
| 1 | PESD5V0L2BT | PCM_Package_TO_SOT_SMD_AKL:SOT-23 | D2 |
| 1 | STM32L433CCTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U73 |
| 1 | TL3342F450QG | Button_Switch_SMD:SW_SPST_TL3342 | SW1 |
| 1 | TVS3V3L4U | PCM_Package_SO_AKL:TSOP-6_1.65x3.05mm_P0.95mm | D7 |
| 1 | UART | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3 |
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Questions
How big is the FULL BOARD SQ5 PCB?
It measures 450 × 400 mm and has 2 copper layers, 1.6 mm thick.
What parts does the FULL BOARD SQ5 use?
207 parts, built around the CD74HC4067M, AP2112K-3.3, 24LC512-I/P and SS14. 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 FULL BOARD SQ5 KiCad files?
From the urichess/chessboard repository on GitHub, at the commit this page was made from: the board is kicad/projects/others/FULL_BOARD_SQ5/FULL_BOARD_SQ5/FULL_BOARD_SQ5.kicad_pcb and its schematic kicad/projects/chessboard_5cm/BRAIN/BRAIN.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the FULL BOARD SQ5 design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).