2 layers165.8 × 130.8 mm
YAEMK
KarlK90/yaemk-split-kb
5x8 Split keyboard with thumb-clusters, rotary encoders and oleds.
218 parts128GPL-3.0
4 layers85.4 × 47.2 mm
Synapse
ibash/synapse2- Size
- 85.4 × 47.2 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 40
- Nets
- 24
- Pads
- 218
- Tracks, vias
- 335, 69
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 Jul 2021
- Updated
- 15 Sep 2021
Overview
Synapse is an open-source printed circuit board by ibash, from the ibash/synapse2 repository on GitHub. It is a 4-layer board of 85.4 × 47.2 mm with 40 parts on 24 nets, routed with 335 tracks and 69 vias.
It is built around the CAT24C512WI-. Its parts include 17 capacitors, 9 resistors, 3 ICs, 2 crystals and 1 diode. It belongs with the STM32 boards of this library.
Main components
1Parts
40| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100n | Capacitor_SMD:C_0402_1005Metric | C3, C6, C7, C8, C9, C12, C14, C17 |
| 3 | 1u | Capacitor_SMD:C_0402_1005Metric | C1, C2, C13 |
| 3 | 470 @ 100MHz | Inductor_SMD:L_0402_1005Metric | FB1, FB2, FB3 |
| 3 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USB1, USB2, USB3 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | 2.7K | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | 200k | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 2 | 4p | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R6, R9 |
| 2 | 6p | Capacitor_SMD:C_0402_1005Metric | C10, C11 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 24MHz 8pF 50 Ohms | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | 32.768K 7p | Common:Crystal_SMD_1210-2Pin_1.2x1.0mm | Y2 |
| 1 | 4u7 | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | 620 | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | CAT24C512 | Common:CAT24C512HU5IGT3 | U2 |
| 1 | NCV8177 3.3v | Common:VREG_NCP170AMX300TCG | U1 |
| 1 | Red LED | LED_SMD:LED_0402_1005Metric | D1 |
| 1 | STM32F411CEUx | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U3 |
| 1 | SWD | Common:TestPoint_Pads_5x2.54_D1.5mm | J1 |
| 1 | SW_SPST | Button_Switch_SMD:SW_SPST_B3U-1000P | SW1 |
Questions
How big is the Synapse PCB?
It measures 85.4 × 47.2 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Synapse use?
40 parts, built around the CAT24C512WI-. 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 Synapse KiCad files?
From the ibash/synapse2 repository on GitHub, at the commit this page was made from: the board is Synapse.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Synapse design in my own project?
Its repository states no licence, so its author keeps all rights: ask ibash before reusing the design.
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