Clock mems extension
About the Clock mems extension PCB
Clock mems extension is an open source PCB design by erikvanzijst, published on GitHub. It is a 2-layer board measuring 20.4 × 10.1 mm, with 6 components from 6 distinct parts.
Other key parts include the SN74HC4060N. By type, the board carries 1 IC and 1 capacitor.
From the project
24H digital quartz clock from scratch
This project contains the schematics and PCB layout for a 24-hour digital quartz clock with self-dimming LED display.
Full write-up is at https://medium.com/@erikvanzijst/a-digital-quartz-clock-from-scratch-a80ec5e427
Main components on the Clock mems extension
Clock mems extension bill of materials (BOM)
6 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74HC4060N SIT1630AI | SOT-23-5_HandSoldering | U1 |
| 1 | Vcc | Pin_D0.8mm | H1 |
| 1 | GND | Pin_D0.8mm | H2 |
| 1 | CLK | Pin_D0.8mm | H3 |
| 1 | NC | Pin_D0.8mm | H4 |
| 1 | 22PF 100nF | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1 |
Clock mems extension design files
The KiCad project lives in the erikvanzijst/clock repository on GitHub; these links point at the commit this page was built from.
Clock mems extension: common questions
How big is the Clock mems extension PCB?
The Clock mems extension measures 20.4 × 10.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Clock mems extension?
6 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Clock mems extension design files?
From the erikvanzijst/clock repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Clock mems extension design in my own project?
The repository has no license, so all rights stay with erikvanzijst. Use it as a reference, and ask the author before reusing the design.
