Bc80
About the Bc80 PCB
Bc80 is an open source PCB design by isolenta, published on GitHub. It is a 2-layer board measuring 149.9 × 111.8 mm, with 62 components from 38 distinct parts.
Other key parts include the SN74HC04, SN74HC00, SN74HC14, SN74HC02 and Z80CPU. By type, the board carries 27 resistors, 17 switches, 10 ICs, 3 connectors, 3 capacitors and 1 crystal.
From the project
Homebrew 8-bit computer project
Main components on the Bc80
Bc80 bill of materials (BOM)
62 components, 38 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74HC04 | DIP-14_W7.62mm | U1 |
| 2 | SN74HC00 | DIP-14_W7.62mm | U2, U3 |
| 1 | SN74HC14 | DIP-14_W7.62mm | U4 |
| 1 | SN74HC02 | DIP-14_W7.62mm | U5 |
| 1 | Z80CPU | DIP-40_W15.24mm | U6 |
| 1 | IS61C5128AS-25TLI-TR | TSOP-I-32_18.4x8mm_P0.5mm | U7 |
| 1 | 27C512 | DIP-28_W15.24mm | U8 |
| 1 | 8255A | DIP-40_W15.24mm | U9 |
| 1 | LCD1602A | WC1602A | U10 |
| 1 | 7MHz | Crystal_HC49-U_Vertical | Y1 |
| 1 | Exp1 | PinHeader_1x25_P2.54mm_Vertical | J1 |
| 1 | Exp2 | PinHeader_1x25_P2.54mm_Vertical | J2 |
| 1 | 5V | TerminalBlock_Altech_AK300-2_P5.00mm | J3 |
| 1 | R50 | R_0805_2012Metric | 1K1 |
| 1 | 0 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1 |
| 1 | 4 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW2 |
| 1 | 1 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW3 |
| 1 | 5 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW4 |
| 1 | 2 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW5 |
| 1 | 6 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW6 |
Show 18 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 8 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW7 |
| 1 | C | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW8 |
| 1 | 3 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW9 |
| 1 | 7 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW10 |
| 1 | 9 | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW11 |
| 1 | D | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW12 |
| 1 | A | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW13 |
| 1 | E | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW14 |
| 1 | B | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW15 |
| 1 | F | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW16 |
| 1 | RESET | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW17 |
| 2 | 22pF | C_0805_2012Metric | C1, C2 |
| 1 | 0.1uF | C_0805_2012Metric | C3 |
| 22 | 100K | R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R9 +14 |
| 2 | 100K x 8 | R_0805_2012Metric | R8, R23 |
| 1 | 470K | R_0805_2012Metric | R24 |
| 1 | 0 | R_0805_2012Metric | R25 |
| 1 | 1K | R_0805_2012Metric | R27 |
Bc80 design files
The KiCad project lives in the isolenta/bc80 repository on GitHub; these links point at the commit this page was built from.
- Layoutbc80/bc80.kicad_pcb
- Schematicbc80/bc80.kicad_sch
Bc80: common questions
How big is the Bc80 PCB?
The Bc80 measures 149.9 × 111.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Bc80?
62 components, from 38 distinct parts. The full bill of materials is listed on this page.
Where can I download the Bc80 design files?
From the isolenta/bc80 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Bc80 design in my own project?
The repository has no license, so all rights stay with isolenta. Use it as a reference, and ask the author before reusing the design.
