

Skeleton68rev2
- Size
- 353.1 × 124.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 252
- Nets
- 195
- Pads
- 1,149
- Tracks, vias
- 2,315, 230
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 23 Nov 2022
- Updated
- 13 Jun 2023
Overview
Skeleton68rev2 is an open-source printed circuit board by skeletonkbd, from the skeletonkbd/Frost68 repository on GitHub. It is a 2-layer board of 353.1 × 124.9 mm with 252 parts on 195 nets, routed with 2,315 tracks and 230 vias.
It is built around the RP2040, W25Q16JVSSIQ and USBLC6-2SC6, with the XC6206P332MR, 1N4148W and SK6812MINI-E among its other parts. Its parts include 136 diodes, 68 switches, 17 capacitors, 9 resistors and 4 ICs. It belongs with the RP2040 boards of this library.
Main components
12RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)W25Q16JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 10uA 133MHz 16Mbit 2.7V~3.6V 20 Years 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASHUSBLC6-2SC6
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)XC6206P332MR
SOT-23-40℃~+85℃@(Ta) 1 1uA 200mA 3.3V 6V Fixed Over Current Protection Positive SOT-23-3L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching DiodesSK6812MINI-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)CPG151101S11
SMDSMD Mechanical Keyboard Shaft ROHSKailhMechanical Keyboard Shaft0402CG220J500NT
040222pF 50V C0G ±5% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSGuangdong Fenghua Advanced Tech (FH)Multilayer Ceramic Capacitors MLCC - SMD/SMTSKQGABE010
SMD-4P,5.2x5.2mm-40℃~+90℃ 1,000,000 cycles 1.5mm 1.6N 12V 5.2mm 5.2mm 50mA Round Button SPST-NO Surface Mount,Vertical SMD-4P,5.2x5.2mm Tactile Switches ROHSALPSALPINETactile SwitchesX322512MSB4SI
SMD3225-4P-40℃~+85℃ 12MHz 20pF 80Ω Crystal Oscillator ±10ppm ±20ppm SMD3225-4P Crystals ROHSYXCCrystalsNSMD050-24V
12061.4mm 1.8mm 100A 100ms 150mΩ 1A 24V 3.5mm 500mA 600mW 700mΩ 1206 Resettable Fuses ROHS台湾陆海Resettable FusesBSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
README
README.mdFrost68
アクリル積層ケースを使った Alice 配列のキーボードです。(開発時名称: Skeleton68rev2)
Firmware: https://github.com/skeletonkbd/qmk_firmware/tree/Frost68/keyboards/skeletonkbd/frost68




Parts
252| Qty | Value | Footprint | References |
|---|---|---|---|
| 68 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +52 |
| 68 | SK6812mini-e | CustomKey:SK6812-MINI-E | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +52 |
| 55 | SW_Push | CustomKey:MX-Hotswap-1U | SW1, SW2, SW10, SW11, SW12, SW13, SW15, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24, SW25 +39 |
| 10 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C5, C6, C9, C10, C11, C12, C13, C14, C15 |
| 8 | MountingHole | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2, H3, H4, H5, H6, H7, H8 |
| 6 | SW_Push | CustomKey:MX-Hotswap-1.5U | SW16, SW29, SW59, SW60, SW64, SW65 |
| 4 | 1uF | Capacitor_SMD:C_0402_1005Metric | C4, C8, C16, C17 |
| 4 | Fiducial | Fiducial:Fiducial_1mm_Mask2mm | FID1, FID2, FID3, FID4 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R2, R7 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 2 | 22pF | Capacitor_SMD:C_0402_1005Metric | C2, C3 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric | R5, R6 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | SW_Push | CustomKey:MX-Hotswap-1.75U | SW31, SW57 |
| 2 | SW_Push | CustomKey:MX-Hotswap-2.25U | SW43, SW45 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_SKQG_WithStem | TS1, TS2 |
| 1 | 10uF | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U3 |
| 1 | SW_Push | CustomKey:MX-Hotswap-2U | SW14 |
| 1 | SW_Push | CustomKey:MX-Hotswap-2.25U-ReversedStabilizers | SW61 |
| 1 | SW_Push | CustomKey:MX-Hotswap-2.75U-ReversedStabilizers | SW63 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U1 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23 | U4 |
Questions
How big is the Skeleton68rev2 PCB?
It measures 353.1 × 124.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Skeleton68rev2 use?
252 parts, built around the RP2040, W25Q16JVSSIQ, USBLC6-2SC6 and XC6206P332MR. 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 Skeleton68rev2 KiCad files?
From the skeletonkbd/Frost68 repository on GitHub, at the commit this page was made from: the board is PCB/Skeleton68rev2.kicad_pcb and its schematic PCB/Skeleton68rev2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Skeleton68rev2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask skeletonkbd before reusing the design.
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