Situacion1
About the Situacion1 PCB
Situacion1 is an open source PCB design by alvaroalea, published on GitHub. It is a 2-layer board measuring 188 × 153.7 mm, with 45 components from 26 distinct parts.
Other key parts include the 74LS06, 2764, WD1772, 74LS00 and 74LS126. By type, the board carries 17 capacitors, 12 ICs, 9 resistors, 4 connectors, 1 crystal and 1 switch.
It belongs with the test & measurement designs in this gallery.
From the project
Schematic of a clone of the Disk Interface +D for the ZX Spectrum
UNDER LICENSE Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) - If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. - You may not use the material for commercial purposes. - You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
Main components on the Situacion1
Situacion1 bill of materials (BOM)
45 components, 26 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS06 | DIP-14_W7.62mm_LongPads | U1 |
| 1 | 2764 | DIP-28_W15.24mm_LongPads | U2 |
| 1 | WD1772 | DIP-28_W15.24mm_LongPads | U3 |
| 2 | 74LS00 | DIP-14_W7.62mm_LongPads | U4, U11 |
| 1 | 74LS126 | DIP-14_W7.62mm_LongPads | U5 |
| 1 | 74LS175 | DIP-16_W7.62mm_LongPads | U6 |
| 1 | 62256 | DIP-28_W15.24mm_LongPads | U7 |
| 1 | PAL20L8 | DIP-24_W7.62mm_LongPads | U8 |
| 1 | 74LS374 | DIP-20_W7.62mm_LongPads | U9 |
| 1 | 74LS27 | DIP-14_W7.62mm_LongPads | U10 |
| 1 | L7805 | TO-220-3_Vertical | U12 |
| 1 | 8.000Mhz | Crystal_HC18-U_Vertical | Y1 |
| 1 | Conn_02x17_Odd_Even | PinHeader_2x17_P2.54mm_Vertical | J1 |
| 1 | ZX_Spectrum_Connector_GENERIC_SORTED | ZX_CONN | J2 |
| 1 | Conn_02x13_Odd_Even | PinHeader_2x13_P2.54mm_Vertical | J3 |
| 1 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | SW_DPST_x2 | SW_TH_Tactile_Omron_B3F-10xx | SW1 |
| 1 | LED | LED_D5.0mm | D2 |
| 3 | 100u | CP_Radial_D7.5mm_P2.50mm | C1, C6, C7 |
| 1 | 33p | C_Disc_D5.0mm_W2.5mm_P2.50mm | C2 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 11 | 100n | C_Disc_D5.0mm_W2.5mm_P2.50mm | C3, C8, C9, C10, C11, C12, C13, C14 +3 |
| 1 | 100p | C_Disc_D5.0mm_W2.5mm_P2.50mm | C4 |
| 1 | 10n | C_Disc_D5.0mm_W2.5mm_P2.50mm | C5 |
| 4 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 4 | 2K2 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5, R6, R7, R9 |
| 1 | 270 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8 |
Situacion1 design files
The KiCad project lives in the alvaroalea/plusD-clone repository on GitHub; these links point at the commit this page was built from.
- Layoutsituacion1.kicad_pcb
Situacion1: common questions
How big is the Situacion1 PCB?
The Situacion1 measures 188 × 153.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Situacion1?
45 components, from 26 distinct parts. The full bill of materials is listed on this page.
Where can I download the Situacion1 design files?
From the alvaroalea/plusD-clone repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Situacion1 design in my own project?
The repository has no license, so all rights stay with alvaroalea. Use it as a reference, and ask the author before reusing the design.
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