Rosario
About the Rosario PCB
Rosario is an open source PCB design by zuiko21, published on GitHub under the MIT license. It is a 2-layer board measuring 97.8 × 72.4 mm, with 39 components from 32 distinct parts.
Other key parts include the 74HC573, HD6301/6303, 62256 / 27C256, 74HC00 and 74HC573/4. By type, the board carries 9 resistors, 7 connectors, 5 ICs, 5 capacitors, 4 transistors and 3 diodes.
It belongs with the retro computing designs in this gallery.
From the project
Scalable OS for 6502/65816
With great embarrassment I have to admit never having owned a 65xx computer... but suport for these classic machines shouldn't be difficult to add -- for instance, I have declared as 'reserved' the two first zero-page bytes in case the utterly popular Commodore-64 (using a 6510) is targeted.
Back to my own-designed devices, here's the range (past, present and future):
Main components on the Rosario
Rosario bill of materials (BOM)
39 components, 32 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC573 | DIP-20_W7.62mm_Socket | U1 |
| 1 | HD6301/6303 | DIP-40_W15.24mm_Socket | U2 |
| 1 | 62256 / 27C256 | DIP-28_W15.24mm_Socket | U3 |
| 1 | 74HC00 | DIP-14_W7.62mm_Socket | U4 |
| 1 | 74HC573/4 | DIP-20_W7.62mm_Socket | U5 |
| 3 | BC548 | TO-92_Inline | Q1, Q2, Q3 |
| 1 | BC558 | TO-92_Inline | Q4 |
| 1 | 4.9152 MHz | Crystal_HC49-U_Vertical | Y1 |
| 1 | CARTRIDGE | PinSocket_2x18_EDGE | J1 |
| 1 | VIAport (PB = output only) | IDC-Header_2x20_P2.54mm_Vertical | J2 |
| 1 | IOx | IDC-Header_2x08_P2.54mm_Vertical | J3 |
| 1 | nanoLink | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | VDU | PinSocket_1x20_P2.54mm_Vertical | J5 |
| 1 | POWER | JST_EH_S2B-EH_1x02_P2.50mm_Horizontal | J6 |
| 1 | (6502) | PinSocket_1x20_P2.54mm_Vertical | J7 |
| 1 | Buzzer | Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | ROM | SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP1 |
| 1 | 32K | SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP2 |
| 1 | RESET | SW_PUSH_6mm | SW1 |
| 1 | NMI | SW_PUSH_6mm | SW2 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 1N4148 | D_DO-35_SOD27_P2.54mm_Vertical_AnodeUp | D1, D2 |
| 1 | ON | LED_D3.0mm | D3 |
| 1 | 10µ | CP_Radial_D4.0mm_P1.50mm | C1 |
| 2 | 10p | C_Disc_D3.8mm_W2.6mm_P2.50mm | C2, C5 |
| 1 | 100µ | CP_Radial_D4.0mm_P1.50mm | C3 |
| 1 | 22n | C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C4 |
| 2 | 22K | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1, R2 |
| 2 | 3K3 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3, R6 |
| 1 | 33 | R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical | R4 |
| 1 | 680 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R5 |
| 2 | 4K7 | R_Array_SIP5 | RN1, RN3 |
| 1 | 22K | R_Array_SIP9 | RN2 |
Rosario design files
The KiCad project lives in the zuiko21/minimOS repository on GitHub; these links point at the commit this page was built from.
Rosario: common questions
How big is the Rosario PCB?
The Rosario measures 97.8 × 72.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Rosario?
39 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the Rosario design files?
From the zuiko21/minimOS repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Rosario design in my own project?
Yes, under the terms of its MIT license, which zuiko21 chose for the repository.
More boards in minimOS
Omronkbd
250.8 × 130.2 mm115 parts2LMIT23
Pluskbd
351.8 × 144.2 mm113 parts2LMIT23
Top5x8kbd
177.8 × 130.8 mm67 parts2LMIT23
Pico vdu
97.8 × 72.4 mm43 parts2LMIT23
Dual430
50.8 × 64.8 mm36 parts2LMIT23
Vdu sv
106.7 × 83.8 mm35 parts2LMIT23
Rtc sd
53.3 × 130.8 mm34 parts2LMIT23
Chihuahua
97.8 × 72.4 mm33 parts2LMIT23
Spi
82.6 × 39.4 mm29 parts2LMIT23
Simple io
97.8 × 72.4 mm26 parts2LMIT23
AVR/ArduinoDron
84.2 × 84.2 mm7 parts2LMIT23
Similar boards
OpenTendo
Redherring32
196.3 × 118.7 mm93 parts2LTAPR-OHL-1.0850
MCL86jr
MicroCoreLabs
56.1 × 57.1 mm66 parts4LNo license532
24pin flex interposer
Wren6991
29 × 32 mm3 parts2LNo license508
Sram dev board
50 × 50 mm12 parts2LNo license508
TRS-80 Color Computer 3
baldengineer
280 × 155.3 mm204 parts2LCC-BY-4.0442
Commodore Plus 4
284.7 × 158.9 mm212 parts2LCC-BY-4.0442