SPU2
About the SPU2 PCB
SPU2 is an open source PCB design by rraider, published on GitHub under the MIT license. It is a 2-layer board measuring 400 × 300 mm, with 736 components from 32 distinct parts.
Other key parts include the 74LS86, 74LS245, 74LS283, 4077 and 74LS02. By type, the board carries 287 resistors, 274 diodes, 85 capacitors, 78 ICs, 4 connectors and 3 transistors.
From the project
Entwicklung eines turingvollständigen, primitiven Microcontroller in der Software Digital
Entwicklung eines turingvollständigen, primitiven Microcontroller in der Software Digital
Sponsored by JLCPCB https://jlcpcb.com/RAT
Main components on the SPU2
SPU2 bill of materials (BOM)
736 components, 32 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74LS86 | DIP-14_W7.62mm_Socket_LongPads | U1, U2 |
| 13 | 74LS245 | DIP-20_W7.62mm_Socket_LongPads | U3, U25, U28, U32, U33, U34, U35, U36 +5 |
| 2 | 74LS283 | DIP-16_W7.62mm_Socket_LongPads | U4, U5 |
| 2 | 4077 | DIP-14_W7.62mm_Socket_LongPads | U6, U7 |
| 1 | 74LS02 | DIP-14_W7.62mm_Socket_LongPads | U8 |
| 1 | 4068 | DIP-14_W7.62mm_Socket_LongPads | U9 |
| 8 | 74LS08 | DIP-14_W7.62mm_Socket_LongPads | U10, U37, U42, U62, U64, U65, U66, U67 |
| 10 | 74LS173 | DIP-16_W7.62mm_Socket_LongPads | U11, U12, U16, U17, U19, U20, U21, U22 +2 |
| 4 | 74LS161 | DIP-16_W7.62mm_Socket_LongPads | U13, U14, U15, U40 |
| 3 | NE555 | DIP-8_W7.62mm | U18, U43, U44 |
| 2 | M84Z02 | DIP-24_W15.24mm_Socket_LongPads | U26, U27 |
| 1 | 74LS00 | DIP-14_W7.62mm_Socket_LongPads | U29 |
| 2 | 28c64 | DIP-28_W15.24mm_Socket_LongPads | U30, U31 |
| 18 | 74HCT574 | SOIC-20W_7.5x12.8mm_P1.27mm | U38, U39, U45, U46, U47, U48, U49, U50 +10 |
| 1 | 74LS04 | DIP-14_W7.62mm_Socket_LongPads | U41 |
| 3 | INTEL2716 | DIP-24_W15.24mm_Socket_LongPads | U61, U63, U68 |
| 1 | CD4514B | DIP-24_W15.24mm_Socket_LongPads | U69 |
| 4 | 74LS157 | DIP-16_W7.62mm_Socket_LongPads | U70, U76, U77, U78 |
| 3 | BC547 | TO-92_Inline | Q2, Q3, Q4 |
| 1 | Conn_Coaxial | SMA_Amphenol_132134-16_Vertical | J1 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Conn_02x13_Counter_Clockwise | PinHeader_2x13_P2.54mm_Vertical | J2 |
| 1 | Conn_01x02 | AMASS_XT30U-F_1x02_P5.0mm_Vertical | J3 |
| 1 | Conn_01x04_Male | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | Fuse | Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F1 |
| 1 | R_POT | Potentiometer_Piher_PT-15-V02_Vertical | RV1 |
| 1 | SW_Push | Panasonic_EVQPUK_EVQPUB | SW1 |
| 1 | SW_SPDT | SW_CuK_OS102011MA1QN1_SPDT_Angled | SW2 |
| 1 | SW_DIP_x02 | SW_DIP_SPSTx02_Slide_9.78x7.26mm_W7.62mm_P2.54mm | SW3 |
| 274 | LED | LED_D5.0mm | D1, D2, D3, D4, D5, D6, D7, D8 +266 |
| 82 | C | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8 +74 |
| 3 | CP | CP_EIA-6032-15_Kemet-U_Pad2.25x2.35mm_HandSolder | C11, C14, C17 |
| 287 | R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 +279 |
SPU2 design files
The KiCad project lives in the rraider/Seminarkurs2021 repository on GitHub; these links point at the commit this page was built from.
- LayoutHardware/SPU2/SPU2.kicad_pcb
- SchematicHardware/SPU2/SPU2.kicad_sch
SPU2: common questions
How big is the SPU2 PCB?
The SPU2 measures 400 × 300 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SPU2?
736 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the SPU2 design files?
From the rraider/Seminarkurs2021 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the SPU2 design in my own project?
Yes, under the terms of its MIT license, which rraider chose for the repository.
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