2 layers344.7 × 123.1 mm
2 layers309.6 × 123.8 mm
KB75HIW
indrawahid7/Keyboard- Size
- 309.6 × 123.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 438
- Nets
- 300
- Pads
- 1,560
- Tracks, vias
- 2,096, 279
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 3 Sep 2024
- Updated
- 5 Nov 2024
Overview
KB75HIW is an open-source printed circuit board by indrawahid7, from the indrawahid7/Keyboard repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 309.6 × 123.8 mm with 438 parts on 300 nets, routed with 2,096 tracks and 279 vias.
It is built around the STM32F401RCT6, BL24C256A-SFRC and MCP1700T-3302E/TT(MS), with the CC0402KRX7R8BB104, 1N4148W and WR04X5R1JTL among its other parts. Its parts include 162 diodes, 95 capacitors, 85 resistors, 82 switches and 3 ICs. It belongs with the STM32 boards of this library.
Main components
12
STM32F401RCT6
LQFP-64(10x10)-40℃~+85℃ 1.7V~3.6V 12bit 256KB 32 Bit 50 64KB 84MHz ARM Cortex-M4 Built-in FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
BL24C256A-SFRC
TSSOP-8-40℃~+85℃ 1,000,000 cycles 1.7V~5.5V 100 Years 1MHz 256Kbit 3ms I2C TSSOP-8 EEPROM ROHSBLEEPROM
MCP1700T-3302E/TT(MS)
SOT-23-40℃~+85℃@(Ta) 1 120uVrms 180mV@(300mA) 2uA 3.3V 300mA 5.5V 80dB@(100Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMSKSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CC0402KRX7R8BB104
0402100nF 25V X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
WR04X5R1JTL
0402-200ppm/℃~+400ppm/℃ -55℃~+155℃ 5.1Ω 50V 62.5mW Thick Film Resistor ±5% 0402 Chip Resistor - Surface Mount ROHSWalsin TechnologyChip Resistor - Surface Mount
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
GRM1555C1H150JA01D
UncategorisedUnknown maker
CC0805KKX7R8BB105
08051uF 25V X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMTCC0402KRX7R9BB103
040210nF 50V X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
SM04B-SRSS-TB(LF)(SN)
SMD,P=1mm,卧贴-25℃~+85℃ 1 1A 1mm 1x4P 2.9mm 4 4.32mm 4P 50V 6mm Auxiliary Solder Pin Copper alloy PA SH Surface Mount, Right Angle Tin UL94V-0 White SMD,P=1mm,卧贴 Wire To Board Connector ROHSJSTWire To Board Connector
TAXM8M4RFDCET2T
SMD3225-4P-40℃~+85℃ 12pF 250Ω 8MHz SMD crystal oscillator ±20ppm ±20ppm SMD3225-4P Crystals ROHSYajingxinCrystals
README
README.mdKeyboard
Parts
438| Qty | Value | Footprint | References |
|---|---|---|---|
| 87 | 100n | Capacitor_SMD:C_0402_1005Metric | C2, C12, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27, C28 +71 |
| 81 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +65 |
| 81 | 5.1R | Resistor_SMD:R_0402_1005Metric | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 +65 |
| 81 | SK6812MINI-E | acheron_Components.pretty-master:SK6812MINI_3535_6028_3.2x2.8mm_Square | D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112, D113, D114, D115 +65 |
| 68 | MX_SW | acheron_MXH.pretty-master:MX100H | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +52 |
| 8 | MountingHole_Pad | MountingHole:MountingHole_2.5mm_Pad_TopBottom | H1, H2, H3, H4, H5, H6, H7, H8 |
| 5 | MX_SW | acheron_MXH.pretty-master:MX125H | SW73, SW74, SW75, SW77, SW78 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C10, C11 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C13, C14 |
| 2 | 4.7K | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C7, C9 |
| 2 | MX_SW | acheron_MXH.pretty-master:MX150H | SW31, SW44 |
| 2 | MX_SW | acheron_MXH.pretty-master:MX175H | SW46, SW71 |
| 2 | MX_SW | acheron_MXH.pretty-master:MX225H | SW58, SW60 |
| 1 | 1.5K | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 10K | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 10u | acheron_Components.pretty-master:CP_EIA-3216-10_Kemet-I_Pad1.58x1.35mm_HandSolder | C1 |
| 1 | BL24C256A-SFRC | acheron_Components.pretty-master:TSSOP-8_4.4x3mm_P0.65mm | U2 |
| 1 | Conn_01x04_Socket | Connector_PinHeader_1.00mm:PinHeader_1x04_P1.00mm_Vertical | J2 |
| 1 | MCP1700T-3302E/TT | Package_TO_SOT_SMD:SOT-23 | U3 |
| 1 | MX_SW | acheron_MXH.pretty-master:MX200H | SW29 |
| 1 | MX_SW | acheron_MXH.pretty-master:MX625H | SW76 |
| 1 | SM04B-SRSS-TB(LF)(SN) | acheron_Connectors.pretty-master:SM04B-SRSS-TB(LF)(SN)_mounting-reliefs | J1 |
| 1 | STM32F401RCT6 | Package_QFP:LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | SW_Push | acheron_Hardware.pretty-master:K2-1187SQ-A4SW-06 | SW82 |
| 1 | TAXM8M4RFDCET2T | acheron_Components.pretty-master:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
Questions
How big is the KB75HIW PCB?
It measures 309.6 × 123.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the KB75HIW use?
438 parts, built around the STM32F401RCT6, BL24C256A-SFRC, MCP1700T-3302E/TT(MS) and CC0402KRX7R8BB104. 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 KB75HIW KiCad files?
From the indrawahid7/Keyboard repository on GitHub, at the commit this page was made from: the board is KB75HIW.kicad_pcb and its schematic KB75HIW.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the KB75HIW design in my own project?
Its repository publishes it under the GPL-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).
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