Csa ultracpu
About the Csa ultracpu PCB
Csa ultracpu is an open source PCB design by fachat, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 160 × 100.2 mm, with 175 components from 56 distinct parts.
Other key parts include the 595-SN74HCT245DWR, 595-SN74LVC125AD, 595-SN74LVC1G04DBVR, 771-74LVC138AD-T and 700-MAX3421EEHJT. By type, the board carries 77 capacitors, 31 ICs, 31 resistors, 13 jumpers, 10 diodes and 3 crystals.
From the project
The CPU board for a 17MHz Colour-PET clone with modern interfaces
The board is a two-layer Eurocard, i.e. 160mm x 100mm.
The schematics and layout have been created with Cadsoft Eagle. So, here you can find the
- csaultracpu.sch and - csaultracpu.brd files
But, you can still have a look at the schematics and layout using the PNG images created
- csaultracpuv2.0b-sch-1.png Part 1 - CS/A Bus interface - csaultracpuv2.0b-sch-2.png Part 2 - CPLD, CPU, Fast RAM - csaultracpuv2.0b-sch-3.png Part 3 - Power - csaultracpuv2.0b-sch-4.png Part 4 - Video and Audio output - csaultracpuv2.0b-sch-5.png Part 5 - SPI devices (Eth, USB, RTCC, ...) -…
Main components on the Csa ultracpu
Csa ultracpu bill of materials (BOM)
175 components, 56 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 595-SN74HCT245DWR 74HCT245DW | SO20W | IC2, IC4, IC5 |
| 1 | 595-SN74LVC125AD 74LVC125 | SO14 | IC3 |
| 1 | 595-SN74LVC1G04DBVR 741G04DBV | SOT23-5 | IC6 |
| 1 | 771-74LVC138AD-T 74LVC138 | SO16 | IC7 |
| 1 | 700-MAX3421EEHJT MAX3421E | LQFP-32_5x5mm_P0.5mm | IC8 |
| 2 | 595-SN74HCT244DWRG4 74244DW | SO20W | IC13, IC19 |
| 1 | 595-SN74LV14ADR 74LVC14 | SO14 | IC14 |
| 1 | 595-SN74LVC4245ADW 74LVC8T245SO24 | SO24L | IC16 |
| 1 | 595-SN74LVC06ADR 74LVC06 | SO14 | IC18 |
| 2 | 913-AS7C34096A-10TIN IS61C5128AL-10TLI | TSOP-II-44_10.16x18.41mm_P0.8mm | U1, U2 |
| 1 | W65C816SPLCC | PLCC44 | U$1 |
| 1 | XC6SLX9-TQG144 | TQFP144 | U$2 |
| 1 | LDI1117 | SOT223 | U$3 |
| 2 | SPIFLASH | DIL08 | U$4, U$18 |
| 7 | PESD5V0L1BA | SOD323 | U$5, U$6, U$8, U$10, U$11, U$14, U$15 |
| 1 | XILINXPROG | FLAT10BOX | U$7 |
| 1 | ETHOLIENC | ETHOLIENC | U$9 |
| 1 | SD-CARD-GRAVI | GRAVITECH-SDCARD | U$12 |
| 1 | MCP79510 | MSOP10 | U$13 |
| 1 | AP2132B-1.2 | PSOP-8-FIXED | U$16 |
Show 36 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 520-ECS-32-12.5-13X 32kHz | TC26H | Q2 |
| 1 | 549-CYS6Q31C-12MHZ 12MHz | HC49_S | Q3 |
| 1 | 490-SJ1-3515 SJ1-3513N | 1503_09 | X1 |
| 1 | 523-7HDE15SD1CH4FVGA D-SUB15-HDR15RA | HDR15RA | X2 |
| 1 | 710-830207670409 SG-8002CE | Oscillator_SMD_SeikoEpson_SG8002CE-4Pin_3.2x2.5mm | X3 |
| 1 | 649-869464713745ELF CSABUS | CSABUS | P1 |
| 1 | 700-DS1818-10T&R DS1818 | TO92 | DS1818 |
| 2 | MOUNT-HOLE3.2 | 3,2 | H3, H4 |
| 7 | JP1E | JP1 | JP1, JP2, JP3, JP4, JP6, JP12, JP13 |
| 1 | JP2E | JP2 | JP5 |
| 1 | JP4E | JP4 | JP7 |
| 4 | PIN | PIN | JP8, JP9, JP10, JP11 |
| 1 | 653-B3F-3122 31-XX | B3F-31XX | S1 |
| 1 | 579-MCP4802-E/SN MCP48X2 | SOIC8 | SN1 |
| 1 | 710-614004190021 USB-A-H | USB-A-H | USB1 |
| 1 | 696-SSL-LX305F4GD LED3MM | LED3MM | LED1 |
| 6 | 78-1N4148 1N4148DO35-7 | DO35-7 | D1, D2, D3, D4, D7, D10 |
| 3 | 78-1N4148 1N4148 | D-5 | D5, D6, D8 |
| 1 | 78-1N4148 1N4448 | D-5 | D9 |
| 11 | 791-0603B105K6R3CT 1u | C0603 | C1, C4, C9, C14, C49, C54, C55, C56 +3 |
| 47 | 581-06033G104ZAT2AM 0.1u | C0603 | C2, C11, C12, C13, C15, C16, C17, C18 +39 |
| 2 | 810-FG28X5R1H105KRT0 1u | C050-025X075 | C3, C10 |
| 10 | 187-CL21A226MPQNNNE 22u | C0805 | C5, C38, C64, C65, C66, C67, C68, C69 +2 |
| 1 | 710-860010372004 47u | E2,5-6 | C6 |
| 2 | 581-06033G104ZAT2AM 100n | C0603 | C7, C8 |
| 4 | 80-C0603C180K4HACTU 18p | C0603 | C29, C30, C39, C40 |
| 3 | 660-RK73H2ATTD33R0F 33 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R4 |
| 13 | 279-CRGH0603J10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R5, R6, R9, R10, R11, R12, R16 +5 |
| 2 | 660-MF1/4LCT52R680G 68 | 0204V | R7, R8 |
| 3 | 708-RNF14FTD470R 470 | 0204V | R13, R14, R15 |
| 3 | 603-MFR-12FRF521K 1k | 0204V | R18, R19, R20 |
| 1 | 756-MFR3-390RFC 390 | 0207_2V | R22 |
| 2 | 603-MFR-12FTF52-100R 100 | 0204V | R28, R31 |
| 1 | 603-MFR-12FTF52-330R 330 | 0207_2V | R29 |
| 2 | 603-MFR-12FTF52-680R 680 | 0204V | R30, R32 |
| 1 | 652-4609X-1LF-10K 10k | RN-9 | RN2 |
Csa ultracpu design files
The KiCad project lives in the fachat/csa_ultracpu repository on GitHub; these links point at the commit this page was built from.
Csa ultracpu: common questions
How big is the Csa ultracpu PCB?
The Csa ultracpu measures 160 × 100.2 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Csa ultracpu?
175 components, from 56 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Csa ultracpu design files?
From the fachat/csa_ultracpu repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Csa ultracpu design in my own project?
Yes, under the terms of its GPL-3.0 license, which fachat chose for the repository.