DS7A-2
About the DS7A-2 PCB
DS7A-2 is an open source PCB design by RWeick, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 165 × 172.5 mm, with 92 components from 38 distinct parts.
Other key parts include the 27512 and 74LS244. By type, the board carries 39 capacitors, 23 resistors, 9 ICs, 4 connectors, 4 switches and 2 transistors.
From the project
The Kicad files and rom for the Bung Game Doctor SF7
This board has been tested and confirmed.
Mainboard PCB Thickness: 1.6 mm RAM PCB Thicknesses: 1.2 mm SNES Attachment PCB Thickness: 1.2 mm
Main components on the DS7A-2
DS7A-2 bill of materials (BOM)
92 components, 38 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ~ | DIP-40_W15.24mm | U2 |
| 1 | ~ | DIP-16_W7.62mm | U3 |
| 1 | 27512 | DIP-28_W15.24mm | U4 |
| 2 | ~ | DIP-28_W15.24mm | U5, U6 |
| 1 | ~ | GDSF-701 | U9 |
| 1 | 74LS244 | DIP-20_W7.62mm | U10 |
| 2 | ~ | SOP-28_8.4x18.16mm_P1.27mm | U12, U14 |
| 1 | BC846A SMD | SOT-23 | Q1 |
| 1 | 2N3904 THT DNP | TO-92_Inline | Q2 |
| 2 | ~ | Cartridge Slot | CN1, CN2 |
| 1 | To FDD | PinSocket_2x17_P2.54mm_Vertical | CON1 |
| 1 | Barrel_Jack_Switch | DC Jack | J1 |
| 1 | 1000 uF | CP_Radial_D8.0mm_P3.50mm | EC1 |
| 1 | Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 4 | Conn_02x10_Odd_Even | PinHeader_2x10_P2.54mm_Vertical | RCON1, RCON2, RCON3, RCON4 |
| 1 | LGS GL7805 | TO-220-3_Horizontal_TabDown | REG1 |
| 2 | DNP | R_Array_SIP9 | RP1, RP2 |
| 4 | Jumper_2_Open | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | S1, S2, S3, S4 |
| 1 | 16 MHz Crystal | Crystal_AT310_D3.0mm_L10.0mm_Horizontal_1EP_style1 | XT1 |
| 1 | 1N4001 | D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
Show 18 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 18 pF | SMD Cap | C1, C2 |
| 24 | DNP | SMD Cap | C3, C4, C20, C21, C26, C27, C28, C29 +16 |
| 8 | 100 nF | SMD Cap | C5, C6, C7, C8, C9, C10, C11, C13 |
| 1 | 80p | SMD Cap | C12 |
| 1 | 100P DNP | SMD Cap | C18 |
| 1 | 30P DNP | SMD Cap | C19 |
| 1 | 100P | SMD Cap | C44 |
| 1 | 30 pF | SMD Cap | C45 |
| 6 | 1K Ohm | SMD Resistor | R1, R2, R3, R4, R21, R37 |
| 4 | 4K7 Ohm | SMD Resistor | R5, R6, R7, R8 |
| 4 | DNP | SMD Resistor | R19, R29, R30, R40 |
| 1 | 821 | SMD Resistor | R20 |
| 2 | 0 Ohm DNP | SMD Resistor | R22, R23 |
| 2 | 0 Ohm | SMD Resistor | R28, R31 |
| 1 | 220 Ohm DNP | SMD Resistor | R32 |
| 1 | 220 Ohnm | SMD Resistor | R36 |
| 1 | 2K Ohm Marked | SMD Resistor | R38 |
| 1 | 330 Ohm | SMD Resistor | R39 |
DS7A-2 design files
The KiCad project lives in the RWeick/SNES-Bung-Game-Doctor-SF7 repository on GitHub; these links point at the commit this page was built from.
- LayoutMainBoard/DS7A-2.kicad_pcb
- SchematicMainBoard/DS7A-2.kicad_sch
DS7A-2: common questions
How big is the DS7A-2 PCB?
The DS7A-2 measures 165 × 172.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the DS7A-2?
92 components, from 38 distinct parts. The full bill of materials is listed on this page.
Where can I download the DS7A-2 design files?
From the RWeick/SNES-Bung-Game-Doctor-SF7 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the DS7A-2 design in my own project?
Yes, under the terms of its GPL-3.0 license, which RWeick chose for the repository.
