GIMIX DMA Floppy
About the GIMIX DMA Floppy PCB
GIMIX DMA Floppy is an open source PCB design by roberto314, published on GitHub under the BSD-2-Clause license. It is a 2-layer board measuring 248.9 × 139.7 mm, with 124 components from 63 distinct parts.
Other key parts include the 74LS244, 7438, 7406, 74LS08 and 74LS157. By type, the board carries 46 ICs, 30 capacitors, 26 resistors, 3 connectors, 2 transistors and 2 switches.
From the project
Reproducing SS-50 and SS-30 cards and GIMIX Ghost Case and Mainboard
This Repository is for primarily my GIMIX Ghost Reproduction and various SS-30 and SS-50 Cards.
- GIMIX DMA SASI board finished, no PALs, production ready, gerbers exported
- GIMIX DMA SASI board production version, second Regulator added
- GIMIX dumb two port serial board finished, no PALs, production possible
- Tanner 64k SRAM board finished, no PALs, production possible
Main components on the GIMIX DMA Floppy
GIMIX DMA Floppy bill of materials (BOM)
124 components, 63 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 74LS244 | DIP-20_W7.62mm | U1, U45, U46, U48 |
| 2 | 7438 | DIP-14_W7.62mm | U2, U3 |
| 4 | 7406 | DIP-14_W7.62mm | U4, U5, U23, U55 |
| 3 | 74LS08 | DIP-14_W7.62mm | U6, U7, U14 |
| 1 | 74LS157 | DIP-16_W7.62mm | U8 |
| 1 | 74LS221 | DIP-16_W7.62mm | U9 |
| 1 | 74LS393 | DIP-14_W7.62mm | U10 |
| 1 | 7404 | DIP-14_W7.62mm | U11 |
| 4 | 74LS74 | DIP-14_W7.62mm | U12, U24, U25, U59 |
| 1 | WD2797 | DIP-40_W15.24mm | U19 |
| 1 | 4538 | DIP-16_W7.62mm | U20 |
| 1 | 74LS123 | DIP-16_W7.62mm | U22 |
| 2 | 74LS367 | DIP-16_W7.62mm | U26, U38 |
| 1 | 74LS138 | DIP-16_W7.62mm | U27 |
| 1 | 74LS273 | DIP-20_W7.62mm | U28 |
| 1 | 74LS174 | DIP-16_W7.62mm | U29 |
| 5 | 74LS161 | DIP-16_W7.62mm | U30, U31, U32, U33, U54 |
| 2 | 74LS240 | DIP-20_W7.62mm | U34, U35 |
| 1 | 74F04 | DIP-14_W7.62mm | U36 |
| 1 | 7420 | DIP-14_W7.62mm | U37 |
Show 43 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS32 | DIP-14_W7.62mm | U39 |
| 5 | 74LS136 | DIP-14_W7.62mm | U40, U41, U42, U43, U44 |
| 1 | 74LS533 | DIP-20_W7.62mm | U47 |
| 1 | 74LS132 | DIP-14_W7.62mm | U52 |
| 2 | LM7805_TO220 | TO-220F-3_Horizontal_TabDown | Q1, Q2 |
| 1 | ? | Crystal_HC49-U_Vertical | Y1 |
| 1 | Floppy 5.25" | PinHeader_2x17_P2.54mm_Vertical | J1 |
| 1 | Floppy 8" | PinHeader_2x25_P2.54mm_Vertical | J2 |
| 1 | SS-50 Bus | SS-50_new | P1 |
| 2 | ? | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | Cx1, Cx2 |
| 1 | RDY Option | PinHeader_2x03_P2.54mm_Vertical | JA1 |
| 1 | 5.25" and 8" Precomp Option | PinHeader_2x05_P2.54mm_Vertical | JA6 |
| 1 | IRQ Select | PinHeader_2x03_P2.54mm_Vertical | JA15 |
| 1 | TESTPOINTS | PinHeader_1x06_P2.54mm_Vertical | JA18 |
| 1 | ? | R_Array_SIP8 | RP1 |
| 2 | 10k | R_Array_SIP10 | RP2, RP3 |
| 4 | ? | Potentiometer_Bourns_3005_Horizontal | RV60, RV61, RV62, RV63 |
| 2 | SW_DIP_x10 | DIP-20_W7.62mm | SW1, SW2 |
| 1 | 1N4148 | D_A-405_P10.16mm_Horizontal | D1 |
| 2 | C_Small | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2 |
| 4 | ? | C_Disc_D3.0mm_W1.6mm_P2.50mm | C5, C7, C8, C33 |
| 2 | ? | C_Disc_D4.7mm_W2.5mm_P5.00mm | C6, C10 |
| 1 | 0 | C_Disc_D4.7mm_W2.5mm_P5.00mm | C18 |
| 1 | ? | C_Rect_L11.0mm_W5.1mm_P10.00mm_MKT | C20 |
| 1 | ? | Capacitor_Trim | C31 |
| 16 | 100n | C_Disc_D3.0mm_W1.6mm_P2.50mm | C32, C34, C35, C36, C38, C39, C42, C43 +8 |
| 2 | 10u | CP_Radial_D5.0mm_P2.50mm | C37, C40 |
| 1 | 10u | CP_Radial_D12.5mm_P5.00mm | C41 |
| 1 | ? | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 1M5 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 15k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 2k2 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 4 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R37, R38, R64 |
| 1 | 13k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9 |
| 1 | 9k1 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10 |
| 1 | 330E | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
| 7 | 680E | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12, R13, R16, R36, R40, R41, R44 |
| 1 | 0E | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R35 |
| 2 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R39, R46 |
| 1 | 30k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R42 |
| 1 | 4k7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R43 |
| 2 | 18k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R65, R66 |
GIMIX DMA Floppy design files
The KiCad project lives in the roberto314/GIMIX_reproduction repository on GitHub; these links point at the commit this page was built from.
GIMIX DMA Floppy: common questions
How big is the GIMIX DMA Floppy PCB?
The GIMIX DMA Floppy measures 248.9 × 139.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the GIMIX DMA Floppy?
124 components, from 63 distinct parts. The full bill of materials is listed on this page.
Where can I download the GIMIX DMA Floppy design files?
From the roberto314/GIMIX_reproduction repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the GIMIX DMA Floppy design in my own project?
Yes, under the terms of its BSD-2-Clause license, which roberto314 chose for the repository.
More boards in GIMIX_reproduction
6809 Plus EPROM Version
248.9 × 139.7 mm165 parts2LBSD-2-Clause1
GIMIX 6809 CPU Plus
248.9 × 139.7 mm165 parts2LBSD-2-Clause1
GIMIX 256k SRAM
247.7 × 140.3 mm104 parts2LBSD-2-Clause1
Tanner 64k SRAM
242.1 × 148.6 mm100 parts2LBSD-2-Clause1
GIMIX Mainboard
482.6 × 228.6 mm80 parts2LBSD-2-Clause1
GIMIX Ghost 6800
228.6 × 142.2 mm74 parts2LBSD-2-Clause1
GIMIX DMA SASI
249.9 × 140.7 mm71 parts2LBSD-2-Clause1
GIMIX intelligent 3 port Serial
149.9 × 139.7 mm69 parts2LBSD-2-Clause1
GIMIX Serial dumb
132.4 × 88.4 mm47 parts2LBSD-2-Clause1
GIMIX BaudRateGenerator
58.4 × 83.8 mm19 parts2LBSD-2-Clause1