SR Latch
About the SR Latch PCB
SR Latch is an open source PCB design by macmade, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 66 × 37 mm, with 19 components from 9 distinct parts.
By type, the board carries 10 resistors, 4 transistors, 2 switches, 2 diodes and 1 connector.
From the project
Various electronics test projects.
Electronics-Tutorials =====================
Schemas and PCB layouts are created with KiCad: http://www.kicad-pcb.org
This project requires the XS-Labs KiCad Library to be installed in KiCad.
- Astable Multivibrator - SR Latch - NPN Logic Gates
[BC547BTF]: https://www.mouser.ch/ProductDetail/512-BC547BTF [MAL214258109E3]: https://www.mouser.ch/ProductDetail/594-MAL203858109E3 [4302H1-12V]: https://www.mouser.ch/ProductDetail/606-4302H1-12V [CCF071K00JKE36]: https://www.mouser.ch/ProductDetail/71-CCF071K00JKE36 [CCF07100KJKE36]: https://www.mouser.ch/ProductDetail/71-CCF07100KJKE36…
SR Latch bill of materials (BOM)
19 components, 9 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | BC547 | Package-TO-92-Line-Spacing-Lead-Form | Q1, Q2, Q3, Q4 |
| 1 | Conn_01x02 | Connector-Wurth-Terminal-Block-2P-3.5mm-691214110002 | J1 |
| 1 | SET | Tactile-Omron-B3W-900X-X1X | SW1 |
| 1 | RESET | Tactile-Omron-B3W-900X-X1X | SW2 |
| 1 | Q | LED-T1-34-5mm | D1 |
| 1 | ~Q | LED-T1-34-5mm | D2 |
| 4 | 1K | Resistor-Vishay-CCF07 | R1, R4, R8, R10 |
| 4 | 10K | Resistor-Vishay-CCF07 | R2, R3, R5, R6 |
| 2 | 390 | Resistor-Vishay-CCF07 | R7, R9 |
SR Latch design files
The KiCad project lives in the macmade/Electronics-Tutorials repository on GitHub; these links point at the commit this page was built from.
- LayoutSR Latch/SR Latch.kicad_pcb
- SchematicSR Latch/SR Latch.kicad_sch
SR Latch: common questions
How big is the SR Latch PCB?
The SR Latch measures 66 × 37 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SR Latch?
19 components, from 9 distinct parts. The full bill of materials is listed on this page.
Where can I download the SR Latch design files?
From the macmade/Electronics-Tutorials repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the SR Latch design in my own project?
Yes, under the terms of its CERN-OHL-1.2 license, which macmade chose for the repository.
