6809v2
About the 6809v2 PCB
6809v2 is an open source PCB design by jbevren, published on GitHub. It is a 2-layer board measuring 99.1 × 99.1 mm, with 52 components from 32 distinct parts.
Other key parts include the MC6809E, 74LS10, 74LS00, 74LS74 and 74LS133. By type, the board carries 23 capacitors, 14 ICs, 6 connectors, 4 resistors, 2 crystals and 2 diodes.
From the project
Code and design repository for the 6809v2 SBC: To be released at VCFMW 13
This system is a 3.68mhz 6809-based microcomputer with 128k RAM and 8K rom. It is intended to run 6809-based operating systems that run within 64k of RAM such as FLEX or OS-9 Level I.
All I/O services are provided via a 68681 DUART, either via one of its serial ports or via the extra GPIO pins on the device.
This documentation is primarily a placeholder and will likely be improved as time goes on(TM). ;-)
Main components on the 6809v2
6809v2 bill of materials (BOM)
52 components, 32 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MC6809E | DIP-40_W15.24mm | U1 |
| 1 | 74LS10 | DIP-14_W7.62mm | U2 |
| 1 | 74LS00 | DIP-14_W7.62mm | U3 |
| 1 | 74LS74 | DIP-14_W7.62mm | U4 |
| 1 | 74LS133 | DIP-16_W7.62mm | U5 |
| 2 | MAX232 | DIP-16_W7.62mm | U6, U11 |
| 1 | 74HC244 | SSOP-20_4.4x6.5mm_Pitch0.65mm | U7 |
| 1 | SPX2920U-3.3_TO220 | TO-220-3_Vertical | U8 |
| 1 | 68681 | DIP-40_W15.24mm | U9 |
| 1 | 27C64 | DIP-28_W15.24mm | U10 |
| 1 | SRAM_512Ko | DIP-32_W15.24mm | U12 |
| 1 | MCP1700-3302E_SOT89 | SOT-89-3 | U13 |
| 1 | 74LS32 | DIP-14_W7.62mm | U14 |
| 1 | 14.756M | Oscillator_DIP-14 | X1 |
| 1 | 14.756M | Oscillator_DIP-8 | X2 |
| 2 | DB9_Male | DB9M_CI | J1, J4 |
| 1 | Conn_02x01 | Pin_Header_Straight_2x01_Pitch2.54mm | J2 |
| 1 | Barrel_Jack | BARREL_JACK | J3 |
| 1 | USB_OTG | USB_Micro-B_Molex_47346-0001 | J5 |
| 1 | Micro_SD_Card | MicroSd_Wurth_693072010801 | J6 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SW_Push | SW_PUSH_6mm | SW1 |
| 1 | 1n4148 | D_A-405_P7.62mm_Horizontal | D1 |
| 1 | LED | LED_D5.0mm | D2 |
| 8 | 1uF | CP_Radial_D5.0mm_P2.00mm | C1, C2, C3, C4, C18, C19, C20, C21 |
| 12 | C | C_Disc_D5.0mm_W2.5mm_P2.50mm | C5, C7, C8, C9, C10, C11, C12, C13 +4 |
| 1 | 1uF | C_Disc_D5.0mm_W2.5mm_P2.50mm | C6 |
| 1 | 10uF | CP_Radial_D5.0mm_P2.50mm | C22 |
| 1 | C | C_Disc_D5.0mm_W2.5mm_P5.00mm | C23 |
| 1 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1 |
| 1 | 50k | R_1206_HandSoldering | R2 |
| 1 | 10K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 39 | R_1206_HandSoldering | R4 |
6809v2 design files
The KiCad project lives in the jbevren/6809v2 repository on GitHub; these links point at the commit this page was built from.
6809v2: common questions
How big is the 6809v2 PCB?
The 6809v2 measures 99.1 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 6809v2?
52 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the 6809v2 design files?
From the jbevren/6809v2 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the 6809v2 design in my own project?
The repository has no license, so all rights stay with jbevren. Use it as a reference, and ask the author before reusing the design.