2 layers191.8 × 121.3 mm
8-Bit CPU 32k
slu4coder/Minimal-UART-Computer-1-2
Legacy: Version 1 and 2 of my TTL-only CPU featuring UART I/O, an expansion port, 512KB SSD at up to 10MHz clock speed
109 parts184
2 layers75 × 75 mm
Snapshot layout
pacew/a2blinky1- Size
- 75 × 75 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 21
- Pads
- 84
- Tracks, vias
- 0, 0
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 20 Oct 2022
- Updated
- 4 Mar 2023
Overview
Snapshot layout is an open-source printed circuit board by pacew, from the pacew/a2blinky repository on GitHub. It is a 2-layer board of 75 × 75 mm with 29 parts on 21 nets.
It is built around the 74HC164. Its parts include 7 capacitors, 6 resistors, 4 ICs, 4 diodes and 2 connectors.
Main components
1Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6 |
| 4 | 100n | Capacitor_SMD:C_0805_2012Metric | C2, C5, C6, C7 |
| 4 | LED_Small | LED_SMD:LED_0805_2012Metric | D2, D3, D4, D5 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.5mm_Pad | H1, H2, H3, H4 |
| 3 | 10u | Capacitor_SMD:C_0805_2012Metric | C1, C3, C4 |
| 1 | 4002 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | 74HC164 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | AP1117-33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | GND | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP1 |
| 1 | LMC555xM | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | LOGO | LOGO | G*** |
Questions
How big is the Snapshot layout PCB?
It measures 75 × 75 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Snapshot layout use?
29 parts, built around the 74HC164. 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 Snapshot layout KiCad files?
From the pacew/a2blinky repository on GitHub, at the commit this page was made from: the board is snapshot-layout.kicad_pcb and its schematic a2blinky.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Snapshot layout design in my own project?
Its repository states no licence, so its author keeps all rights: ask pacew before reusing the design.
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