Clock generator
jerry-kerenzikov·ytterbium·pcb/pl/clock_generator/clock_generator.kicad_pcb
About the Clock generator PCB
Clock generator is an open source PCB design by jerry-kerenzikov, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 100 × 36 mm, with 41 components from 16 distinct parts.
Other key parts include the LMC555xM, 74LVC1G17 and 74AHC1G14. By type, the board carries 13 capacitors, 11 resistors, 6 ICs, 4 switches, 4 diodes and 2 connectors.
From the project
Project files for Ytterbium modular CPU platform and Yprog programming tool

Main components on the Clock generator
Clock generator bill of materials (BOM)
41 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LMC555xM | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 3 | 74LVC1G17 | SOT-23-5 | U2, U3, U4 |
| 2 | 74AHC1G14 | SOT-23-5 | U5, U6 |
| 1 | Conn_02x07_Top_Bottom | PinHeader_2x07_P2.54mm_Horizontal | J1 |
| 1 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | A1M | PTV09A-4020S-A105 | RV1 |
| 2 | SW_DPDT_x2 | SW_DPDT_16.9x7.4 | SW1, SW2 |
| 2 | SW_Push | SW_PUSH_6mm_H4.3mm | SW3, SW4 |
| 4 | LED | LED_0805_2012Metric | D1, D2, D3, D4 |
| 1 | 1n | C_0603_1608Metric | C1 |
| 9 | 100n | C_0603_1608Metric | C2, C4, C5, C6, C7, C8, C9, C10 +1 |
| 3 | 10u | C_0805_2012Metric | C3, C12, C13 |
| 5 | 330 | R_0603_1608Metric | R1, R3, R8, R10, R11 |
| 2 | 10k | R_0603_1608Metric | R2, R4 |
| 2 | 500 | R_0603_1608Metric | R5, R6 |
| 2 | 1k | R_0603_1608Metric | R7, R9 |
Clock generator design files
The KiCad project lives in the jerry-kerenzikov/ytterbium repository on GitHub; these links point at the commit this page was built from.
Clock generator: common questions
How big is the Clock generator PCB?
The Clock generator measures 100 × 36 mm, has 4 copper layers and is 1.62516 mm thick.
How many components are on the Clock generator?
41 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the Clock generator design files?
From the jerry-kerenzikov/ytterbium repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Clock generator design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which jerry-kerenzikov chose for the repository.
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