SNSP-CPU-1CHIP
About the SNSP-CPU-1CHIP PCB
SNSP-CPU-1CHIP is an open source PCB design by stonedDiscord, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 155.5 × 161.9 mm, with 222 components from 59 distinct parts.
Other key parts include the S-CPUN(5A122), S-APU, WRAM, 32Kx8_SRAM and UPD6379A. By type, the board carries 74 capacitors, 51 resistors, 45 test points, 11 ICs, 6 connectors and 5 diodes.
From the project
Super Nintendo Entertainment System PAL schematic and board layout
The design tries to be a 1:1 recreation of the original SNSP-CPU-01 Rev5 and SNSP-CPU-1CHIP boards.
If you decide to get it assembled I suggest only getting the bottom side with all the SMD components done and doing the top yourself. The bottom only has jellybean capacitors, resistors, diodes, transistors so it's not going to be very expensive.
For the top you will have to salvage the Nintendo components. The video RAM is still being made by S@Tech (HM62256). The audio RAM can probably also be easily replaced, I haven't looked into this yet. Feel free to open an issue about it.
Main components on the SNSP-CPU-1CHIP
SNSP-CPU-1CHIP bill of materials (BOM)
222 components, 59 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | S-CPUN(5A122) | PQFP-160_28x28mm_P0.65mm | U1 |
| 1 | S-APU | PQFP-100_14x20mm_P0.65mm | U2 |
| 1 | WRAM | SOP-64_11x28mm_P0,75mm | U3 |
| 2 | 32Kx8_SRAM | RAM | U4, U5 |
| 1 | UPD6379A | SO-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | S-RGB | SO-24_5.3x15mm_P1.27mm | U7 |
| 1 | CIC | SOIC-18_7x12mm_P0,8mm | U8 |
| 1 | L7805 | TO-220-3_Vertical | U9 |
| 1 | S-MIX | SO-14_3.9x8.65mm_P1.27mm | U10 |
| 1 | T5290 | SC-59_Handsoldering | U11 |
| 3 | C2412 | SC-59 | Q1, Q2, Q3 |
| 1 | 17.734476MHz | Crystal_HC18-U_Vertical | X1 |
| 1 | 24.57MHz | Crystal_HC49-U-3Pin_Vertical | X2 |
| 1 | Jack-DC | DcJack | J1 |
| 1 | CASSETTE | CASSETTE | P1 |
| 1 | JST 11FE-BT-VK-N | JST_ZE_Controllers | P2 |
| 1 | PWR_SW | PinHeader_1x02_P2.00mm_Vertical | P3 |
| 1 | AVOUT | AVOut | P4 |
| 1 | EXPANSION | EXPANSION | P5 |
| 7 | DAP202 | SC-59 | DA1, DA2, DA3, DA4, DA5, DA12, DA14 |
Show 39 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | DAN202 | SC-59 | DA6, DA7, DA8, DA9, DA10, DA11, DA15 |
| 1 | DAN217 | SC-59 | DA13 |
| 1 | 1.5A | Fuse | F1 |
| 1 | RF_MODULATOR | RFModulator | RF1 |
| 1 | RESET | ResetSwitch | SW1 |
| 1 | TDK zjys-2 | L_CommonModeChoke_TDK_ACM7060 | T1 |
| 1 | ? | CP_Radial_Tantal_D4.5mm_P5.00mm | TC1 |
| 45 | TestPoint | TestPoint_THTPad_D1.0mm_Drill0.5mm | TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9 +37 |
| 1 | ERZC050K220 | RV_Disc_D7mm_W3.4mm_P5mm | VA1 |
| 1 | 12V Zener | SC-59 | D1 |
| 4 | A3 | D_T-1_P5.08mm_Horizontal | D2, D3, D4, D5 |
| 4 | ? | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | L1, L2, L3, L4 |
| 33 | ? | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3, C6, C7, C8, C10, C11, C20 +25 |
| 12 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C29, C32, C33, C57, C62, C63 +4 |
| 1 | 2.2uF 50V | CP_Elec_4x3 | C9 |
| 2 | 10uF 16V | CP_Elec_4x3 | C12, C13 |
| 3 | 33uF 25V | CP_Elec_6.3x5.4 | C14, C16, C17 |
| 1 | 47uF 16V | CP_Elec_6.3x5.4 | C15 |
| 2 | 220uF 6V3 | CP_Radial_Tantal_D4.5mm_P5.00mm | C18, C19 |
| 10 | 330pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C22, C35, C36, C37, C38, C39, C40, C41 +2 |
| 2 | 10nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C30, C31 |
| 2 | 100uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C34, C60 |
| 1 | 10uF 25V | CP_Elec_6.3x5.4 | C59 |
| 1 | 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C61 |
| 1 | 100n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C67 |
| 1 | 10uF 50V | C_Elec_6.3x5.4 | C71 |
| 1 | 2200uF 25V | CP_Radial_D12.5mm_P5.00mm | C72 |
| 1 | OS-CON | CP_Radial_Tantal_D4.5mm_P5.00mm | C78 |
| 5 | 200 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R49, R50, R52, R53 |
| 2 | 0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R12 |
| 1 | 1k6 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 4k7 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 5 | ? | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R6, R7, R8, R31 |
| 11 | 100 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R10, R11, R30, R39, R40, R41, R42 +3 |
| 5 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R13, R14, R23, R26, R28 |
| 6 | 39 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15, R16, R17, R18, R19, R20 |
| 1 | 470k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R21 |
| 12 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R22, R25, R29, R32, R33, R34, R35, R36 +4 |
| 2 | 47k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R24, R27 |
SNSP-CPU-1CHIP design files
The KiCad project lives in the stonedDiscord/nonSNES repository on GitHub; these links point at the commit this page was built from.
SNSP-CPU-1CHIP: common questions
How big is the SNSP-CPU-1CHIP PCB?
The SNSP-CPU-1CHIP measures 155.5 × 161.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SNSP-CPU-1CHIP?
222 components, from 59 distinct parts. The full bill of materials is listed on this page.
Where can I download the SNSP-CPU-1CHIP design files?
From the stonedDiscord/nonSNES repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the SNSP-CPU-1CHIP design in my own project?
Yes, under the terms of its GPL-3.0 license, which stonedDiscord chose for the repository.
