2 layers96.3 × 69.5 mm
Reverse singlerom
partlyhuman/floopydrive
The Floopy Drive, an open-source flashcart for Casio Loopy
18 parts30MIT
2 layers96.3 × 76.2 mm
Flash-32mbit
partlyhuman/floopydrive30The Floopy Drive, an open-source flashcart for Casio Loopy
- Size
- 96.3 × 76.2 mm
- Copper layers
- 2
- Thickness
- 1.2 mm
- Parts
- 33
- Nets
- 129
- Pads
- 342
- Tracks, vias
- 1,085, 204
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Mar 2023
- Updated
- 3 Aug 2026
Overview
Flash-32mbit is an open-source printed circuit board by partlyhuman, from the partlyhuman/floopydrive repository on GitHub, published under the MIT licence. It is a 2-layer board of 96.3 × 76.2 mm with 33 parts on 129 nets, routed with 1,085 tracks and 204 vias.
It is built around the AS6C1008-55SIN, RP2040-TINY and SN74LVC1G04DBV, with the BAT54C, BSS138 and CR2032 among its other parts. Its parts include 13 resistors, 7 ICs, 6 capacitors, 3 diodes and 1 connector. It belongs with the RP2040 boards of this library.
Main components
6
AS6C1008-55SIN
SOIC322.7V-5V, 55ns, 1M (128K x 8), Low Power CMOS SRAMALLIANCE MEMORY INC.Uncategorised
RP2040-TINY
-- Development Boards & Kits ROHSWaveshareDevelopment Boards & Kits
SN74LVC1G04DBV
SOT-23-5-40℃~+125℃ 1 1 1.65V~5.5V 1.7V~2V 10uA 2.4V 3.7ns@5V,50pF 32mA 32mA 400mV 700mV~800mV 74LVC 电源关断保护 SOT-23-5 Inverters ROHSTexas InstrumentsInverters
BAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky DiodesBSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
CR2032
-- Unclassified goods ROHSMaxellUncategorised
README
README.mdthe Floopy Drive 💕
This is a flashcart/devcart for the Casio Loopy.
☕️ Pre-built carts shipping worldwide on loopy.land/shop
To help find your way around:
- pcb/flash-32mbit/ The star of the show, the Floopy Drive PCB
- flash-programmer/ Firmware that runs on the Floopy Drive, plus the PC interface for flashing it
- cart-shell/ 3D printable case for the Floopy Drive
- labels/ Printable labels you can affix to a finished Floopy Drive
- pcb/ Other boards built along the way include a reverse-engineered cart that started it all
- scans/ Scans of de-populated OEM Loopy games used as reference
- data/ Archive of relevant part datasheets for quick reference
Related repositories:
- OSCR — I contributed a Casio Loopy adapter and code to the Open Source Cartridge Dumper, as well as a makeshift adapter that doesn't require an original cart connector
- Loopy-Tools — a treasure trove of documentation and tooling around the Loopy by @kasamikona
- Loopy-Schematics - Schematics for various parts of, and accessories for, the Casio Loopy by @kasamikona
- LoopyMSE — an open-source cross-platform Loopy emulator created by @PSI-Rockin
Contributors! 💕
None of this would be possible without the contributions of @kasamikona and @kvanderlaag, with many, many additional thanks to the members of the Unloved Budget Computer Hole Discord server.
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4, R5, R8, R11, R14 |
| 5 | 0.1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C4, C5, C6, C7 |
| 5 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R6, R9, R13 |
| 3 | MCP23S17T-E/SS | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U5, U6, U7 |
| 2 | MountingHole_5mm | MountingHole:MountingHole_5mm | H1, H2 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 2K2 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10 |
| 1 | AS6C1008-55SIN | LOOPY_SRAM:SOIC127P1410X300-32N | U2 |
| 1 | BAT54C | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | D3 |
| 1 | CR2032 | LOOPY_Cart:Keystone-3034TR-MFG | BT1 |
| 1 | LH28F320SKTD-L70 | LOOPY_Flash:TSOP-I-56_18.4x14mm_P0.5mm-HandSolder | U1 |
| 1 | PMEG4005CT,215 | Package_TO_SOT_SMD:SOT-23-3 | D2 |
| 1 | RP2040-Tiny | LOOPY_PI:RP2040-Tiny | U4 |
| 1 | SN74LVC1G04 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | ~ | LOOPY_Cart:LOOPY_Cart_Edge | J1 |
Questions
How big is the Flash-32mbit PCB?
It measures 96.3 × 76.2 mm and has 2 copper layers, 1.2 mm thick.
What parts does the Flash-32mbit use?
33 parts, built around the AS6C1008-55SIN, RP2040-TINY, SN74LVC1G04DBV and BAT54C. 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 Flash-32mbit KiCad files?
From the partlyhuman/floopydrive repository on GitHub, at the commit this page was made from: the board is pcb/flash-32mbit/flash-32mbit.kicad_pcb and its schematic pcb/cart-connector/cart-connector.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Flash-32mbit design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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